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Comment Search results for posted by Old Original Oskar! :
List Comments Posted in the Last:
Difficulty: 2 of 5Under Linear and quadratic (in Calculus)
Posted on 2007-10-23 (9 Comments)
Solution By limits by Old Original Oskar! (2007-10-24 00:08:37)
Difficulty: 3 of 5Under Rationalizing Decimals (in Numbers)
Posted on 2007-09-26 (8 Comments)
Solution Short by Old Original Oskar! (2007-09-26 13:26:51)
Difficulty: 2 of 5Under Polynomial Divisions (in Calculus)
Posted on 2007-08-13 (3 Comments)
Solution Solution by Old Original Oskar! (2007-08-13 07:47:29)
Difficulty: 3 of 5Under Tough Puzzle (part 1) (in Numbers)
Posted on 2007-08-09 (3 Comments)
First solution by Old Original Oskar! (2007-08-09 23:44:43)
Difficulty: 3 of 5Under Quadruple Agent (in Probability)
Posted on 2007-07-25 (11 Comments)
Some Thoughts re: a probable solution by Old Original Oskar! (2007-07-26 11:58:08)
Difficulty: 3 of 5Under Take Perpendicular Distances, Get One Side (in Geometry)
Posted on 2007-07-08 (4 Comments)
Some Thoughts Trivial second part by Old Original Oskar! (2007-07-09 09:48:37)
Difficulty: 1 of 5Under Know yourself (in Liars and Knights)
Posted on 2007-07-06 (12 Comments)
Two options by Old Original Oskar! (2007-07-06 22:11:14)
Difficulty: 3 of 5Under A Game of Tennis (in Probability)
Posted on 2007-07-05 (6 Comments)
Some Thoughts re(2): First question - disagree by Old Original Oskar! (2007-07-05 22:33:35)
Difficulty: 3 of 5Under A grok is a grok is a ... ? (in Liars and Knights)
Posted on 2007-06-29 (11 Comments)
Solution re: solution -- not by Old Original Oskar! (2007-06-29 10:15:06)
Difficulty: 2 of 5Under sin(15)=sin(15) (in General)
Posted on 2007-06-25 (2 Comments)
Solution Solution by Old Original Oskar! (2007-06-25 09:18:49)
Difficulty: 3 of 5Under All Wrong at the Olympic Games (in Logic)
Posted on 2007-06-15 (14 Comments)
Solution A worked out solution by Old Original Oskar! (2007-06-15 21:34:46)
Some Thoughts re: solution (attempt) by Old Original Oskar! (2007-06-15 21:32:10)
Difficulty: 3 of 5Under fragmented whole (in Word Problems)
Posted on 2007-06-14 (8 Comments)
Hints/Tips Some key words by Old Original Oskar! (2007-06-14 12:13:53)
Difficulty: 2 of 5Under Exponentiate In Pairs, Get Numbers (in Just Math)
Posted on 2007-06-08 (6 Comments)
Solution Proof by Old Original Oskar! (2007-06-08 09:31:56)
Difficulty: 2 of 5Under How to pick 'em (in Logic)
Posted on 2007-05-25 (8 Comments)
Solution Solution by Old Original Oskar! (2007-05-25 11:33:02)
Difficulty: 2 of 5Under Get Real, Find The Triplets (in Just Math)
Posted on 2007-05-21 (1 Comments)
Solution Solutions by Old Original Oskar! (2007-05-21 10:06:45)
Difficulty: 3 of 5Under Rank The Magicians (in Logic)
Posted on 2007-05-08 (8 Comments)
Solution Rather easy by Old Original Oskar! (2007-05-08 11:59:13)
Difficulty: 3 of 5Under Binet returns (in Just Math)
Posted on 2007-05-04 (2 Comments)
Solution Solution by Old Original Oskar! (2007-05-04 17:11:26)
Difficulty: 2 of 5Under Three Squares (in Numbers)
Posted on 2007-05-03 (9 Comments)
Solution No tries at all by Old Original Oskar! (2007-05-03 12:22:06)
Difficulty: 2 of 5Under Sum three, get one (in Numbers)
Posted on 2007-04-25 (3 Comments)
Solution One and only one by Old Original Oskar! (2007-04-25 10:06:05)
Difficulty: 3 of 5Under Always greater (in Games)
Posted on 2007-04-14 (6 Comments)
Solution A boring game by Old Original Oskar! (2007-04-15 13:37:05)
Difficulty: 3 of 5Under Hell Hath No Fury ... (in Paradoxes)
Posted on 2007-04-12 (9 Comments)
Solution No paradox by Old Original Oskar! (2007-04-12 12:16:32)
Difficulty: 3 of 5Under Paint it black (in Probability)
Posted on 2007-04-02 (9 Comments)
Solution Too big numbers by Old Original Oskar! (2007-04-02 19:39:27)
Difficulty: 3 of 5Under Alternating sextet (in Sequences)
Posted on 2007-03-30 (6 Comments)
Some Thoughts Brute force and luck by Old Original Oskar! (2007-03-31 09:07:38)
Difficulty: 2 of 5Under Reassemble My Double (in Cryptography)
Posted on 2007-03-30 (4 Comments)
Some Thoughts Bet, Just Bet by Old Original Oskar! (2007-03-31 09:01:12)
Difficulty: 3 of 5Under Smallest Value (in Just Math)
Posted on 2007-03-27 (5 Comments)
Solution Simple solution by Old Original Oskar! (2007-03-27 12:48:59)
Difficulty: 2 of 5Under 4x4 Sudoku (in Logic)
Posted on 2007-03-19 (5 Comments)
Solution Second question by Old Original Oskar! (2007-03-19 15:02:05)
Difficulty: 1 of 5Under Further Geometric Numbers (2) (in Numbers)
Posted on 2007-03-19 (4 Comments)
Solution re: Quick spoiler by Old Original Oskar! (2007-03-19 08:47:32)
Difficulty: 3 of 5Under Front to back (in Numbers)
Posted on 2007-03-18 (3 Comments)
Solution Lots of summing by Old Original Oskar! (2007-03-18 13:14:50)
Difficulty: 3 of 5Under Square Pisano, Get Sequence? (in Sequences)
Posted on 2007-03-14 (4 Comments)
Solution Proof by Old Original Oskar! (2007-03-14 14:49:54)
Difficulty: 3 of 5Under A Consecutive Sequence ? (in Sequences)
Posted on 2007-03-09 (2 Comments)
Solution Answer (no spoiler) by Old Original Oskar! (2007-03-09 09:15:45)
Difficulty: 3 of 5Under Four Coins and Three Weighings (in Weights and Scales)
Posted on 2007-03-08 (10 Comments)
Some Thoughts Almost a solution... by Old Original Oskar! (2007-03-08 15:17:12)
Difficulty: 2 of 5Under Find the Country (in Word Problems)
Posted on 2007-01-11 (14 Comments)
Solution A reasoned way by Old Original Oskar! (2007-01-11 14:52:34)
Difficulty: 2 of 5Under Allen's Ambivalent Approximation (in Probability)
Posted on 2007-01-11 (5 Comments)
Some Thoughts re: It's not as funny, but ... (spoiler) by Old Original Oskar! (2007-01-11 14:55:40)
Difficulty: 3 of 5Under Another 2009 Problem (in Just Math)
Posted on 2006-12-26 (1 Comments)
Solution Two answers by Old Original Oskar! (2006-12-26 11:13:23)
Difficulty: 2 of 5Under Six hundred coins (in Probability)
Posted on 2006-12-22 (12 Comments)
Solution Answers by Old Original Oskar! (2006-12-22 08:53:33)
Difficulty: 3 of 5Under Red herrings (in Cryptography)
Posted on 2006-12-19 (6 Comments)
Solution More than one meaning (no spoiler) by Old Original Oskar! (2006-12-19 14:07:07)
Difficulty: 2 of 5Under No Cigar (in Numbers)
Posted on 2006-12-19 (10 Comments)
Solution Much, much, much closer by Old Original Oskar! (2006-12-19 07:51:50)
Difficulty: 3 of 5Under Colourful set (in Sequences)
Posted on 2006-12-06 (5 Comments)
Solution Smaller answer by Old Original Oskar! (2006-12-06 11:45:50)
Difficulty: 3 of 5Under A square with a circle with a point (in Geometry)
Posted on 2006-11-25 (14 Comments)
Solution I beg to differ by Old Original Oskar! (2006-11-25 09:53:14)
Difficulty: 2 of 5Under One Away II (in Cryptography)
Posted on 2006-11-23 (4 Comments)
Solution Answer in kind (no spoiler) by Old Original Oskar! (2006-11-23 12:58:37)
Difficulty: 1 of 5Under Chicken or Egg (in Tricks)
Posted on 2006-11-21 (19 Comments)
Solution Eggceptional answer by Old Original Oskar! (2006-11-21 10:24:09)
Difficulty: 2 of 5Under Favorable Numbers (in Numbers)
Posted on 2006-11-02 (4 Comments)
Solution Minimalist Answer / No Spoiler by Old Original Oskar! (2006-11-02 10:56:09)
Difficulty: 2 of 5Under A Fourth Person Problem (in Liars and Knights)
Posted on 2006-11-01 (16 Comments)
Solution Swift Simple Solution by Old Original Oskar! (2006-11-01 10:52:25)
Difficulty: 2 of 5Under Four Squared (in Logic)
Posted on 2006-10-26 (17 Comments)
Some Thoughts A trivial way to solve this by Old Original Oskar! (2006-10-26 14:18:36)
Difficulty: 3 of 5Under Threes and sevens (in Numbers)
Posted on 2006-10-25 (7 Comments)
Solution Answer for 33 by Old Original Oskar! (2006-10-25 09:45:10)
Difficulty: 3 of 5Under No rows (in Games)
Posted on 2006-10-24 (17 Comments)
Some Thoughts re: No Subject - doesn't work by Old Original Oskar! (2006-10-24 10:53:59)
Difficulty: 3 of 5Under Let them eat cake (in Geometry)
Posted on 2006-10-23 (3 Comments)
Solution Regular polygon cake by Old Original Oskar! (2006-10-23 09:28:01)
Difficulty: 2 of 5Under Shrink needed (in Algorithms)
Posted on 2006-10-18 (26 Comments)
Solution No zipper exists by Old Original Oskar! (2006-10-20 09:41:12)
Difficulty: 2 of 5Under A horse of a different color (in Liars and Knights)
Posted on 2006-09-26 (20 Comments)
Solution Possibility by Old Original Oskar! (2006-09-26 10:07:49)
Difficulty: 3 of 5Under Repeating decimals (in Numbers)
Posted on 2006-09-25 (11 Comments)
re(5): General solution by Old Original Oskar! (2006-09-27 11:47:07)
Some Thoughts re(3): General solution by Old Original Oskar! (2006-09-26 16:14:41)
Difficulty: 5 of 5Under Can you match them up? (in Just Math)
Posted on 2006-09-21 (6 Comments)
Solution Solutions 2 to 4 by Old Original Oskar! (2006-09-21 16:49:34)
Difficulty: 2 of 5Under Take five! (in Numbers)
Posted on 2006-09-21 (4 Comments)
Solution Solution (with mysterious hint) by Old Original Oskar! (2006-09-21 14:22:25)
Difficulty: 3 of 5Under A permutation puzzle (in Just Math)
Posted on 2006-09-20 (4 Comments)
re: solution? - Nope by Old Original Oskar! (2006-09-21 13:10:13)
Difficulty: 4 of 5Under Magic 8's (in Numbers)
Posted on 2006-09-18 (8 Comments)
Solution Smallest solution by Old Original Oskar! (2006-09-18 15:40:15)
Difficulty: 2 of 5Under Commutative Group (in Just Math)
Posted on 2006-09-18 (8 Comments)
Solution No thinking, only researching by Old Original Oskar! (2006-09-18 10:12:00)
Difficulty: 3 of 5Under A multi-solution diophantine problem (in Just Math)
Posted on 2006-09-15 (7 Comments)
Solution Many solutions (all of them?) by Old Original Oskar! (2006-09-15 11:49:40)
Difficulty: 2 of 5Under Another Time And Work Problem (in General)
Posted on 2006-09-14 (4 Comments)
Solution Second way by Old Original Oskar! (2006-09-14 15:30:26)
Difficulty: 3 of 5Under Fermat for beginners (in Numbers)
Posted on 2006-09-14 (4 Comments)
Solution All solutions by Old Original Oskar! (2006-09-14 15:36:28)
Difficulty: 4 of 5Under No Repeats (in Games)
Posted on 2006-09-13 (6 Comments)
Hints/Tips A way to solve this by Old Original Oskar! (2006-09-13 13:15:19)
Difficulty: 2 of 5Under Freecell (in Just Math)
Posted on 2006-09-06 (6 Comments)
Solution Solution by Old Original Oskar! (2006-09-06 08:30:12)
Difficulty: 3 of 5Under As simple as it gets (in Liars and Knights)
Posted on 2006-09-02 (6 Comments)
Hints/Tips Idea (no spoiler) by Old Original Oskar! (2006-09-02 16:03:38)
Difficulty: 2 of 5Under Bananas (in Numbers)
Posted on 2006-08-28 (10 Comments)
Some Thoughts re: The answer is simple by Old Original Oskar! (2006-08-30 22:08:27)
Some Thoughts re: Answer by Old Original Oskar! (2006-08-29 13:14:23)
Solution 1617 reasons by Old Original Oskar! (2006-08-28 09:47:30)
Difficulty: 2 of 5Under A FIRST and SECOND Problem (in Numbers)
Posted on 2006-08-22 (5 Comments)
Some Thoughts An idea, with no computer by Old Original Oskar! (2006-08-22 15:31:14)
Difficulty: 4 of 5Under Summing or Multiplying (in Numbers)
Posted on 2006-08-21 (20 Comments)
re(3): Peculiars vs. Primes by Old Original Oskar! (2006-08-23 07:24:50)
re(4): Peculiars vs. Primes by Old Original Oskar! (2006-08-23 07:23:09)
re: my not so simple solution -- OOPS! by Old Original Oskar! (2006-08-21 21:54:01)
Difficulty: 1 of 5Under Millenium problem (in Numbers)
Posted on 2006-08-21 (14 Comments)
Dirty trick by Old Original Oskar! (2006-08-22 14:40:20)
Difficulty: 2 of 5Under An Identity Problem (in Liars and Knights)
Posted on 2006-08-17 (11 Comments)
Solution re: Quick by Old Original Oskar! (2006-08-17 22:22:56)
Difficulty: 2 of 5Under A Real Number problem (in Just Math)
Posted on 2006-08-16 (9 Comments)
Some Thoughts An idea by Old Original Oskar! (2006-08-16 13:36:40)
Difficulty: 1 of 5Under What do I save? (in General)
Posted on 2006-08-11 (6 Comments)
Some Thoughts Almost right by Old Original Oskar! (2006-08-11 09:32:53)
Difficulty: 3 of 5Under So how small is it then? (in Numbers)
Posted on 2006-08-09 (14 Comments)
Solution Solution by Old Original Oskar! (2006-08-09 14:15:26)
Difficulty: 3 of 5Under Sign of a Permutation (in Algorithms)
Posted on 2006-08-05 (11 Comments)
Some Thoughts re: What I would NOT advocate by Old Original Oskar! (2006-08-07 15:43:59)
Solution Trivially? by Old Original Oskar! (2006-08-05 15:54:15)
Difficulty: 2 of 5Under Chess Strategy (in Logic)
Posted on 2006-08-01 (7 Comments)
Solution Too simple by Old Original Oskar! (2006-08-01 08:49:04)
Difficulty: 2 of 5Under To qualify, or not to qualify (in General)
Posted on 2006-07-24 (6 Comments)
Solution Spoiler by Old Original Oskar! (2006-07-24 10:22:18)
Difficulty: 3 of 5Under Cube first, or square second (in Numbers)
Posted on 2006-07-22 (7 Comments)
Some Thoughts A bet by Old Original Oskar! (2006-07-22 09:28:54)
Difficulty: 4 of 5Under Hats and alligators (in Logic)
Posted on 2006-07-15 (19 Comments)
Solution Solution by Old Original Oskar! (2006-07-15 12:54:33)
Difficulty: 3 of 5Under First Impressions (in Cryptography)
Posted on 2006-07-10 (16 Comments)
re: One of the best problems ever? by Old Original Oskar! (2006-07-11 10:38:34)
Solution Solution by Old Original Oskar! (2006-07-10 15:12:17)
Difficulty: 3 of 5Under Multiplication Table (in Numbers)
Posted on 2006-07-07 (12 Comments)
Solution A better answer by Old Original Oskar! (2006-07-07 14:34:10)
Difficulty: 3 of 5Under Calling all pythagoreans (in Geometry)
Posted on 2006-07-03 (7 Comments)
Hints/Tips A more specific result by Old Original Oskar! (2006-07-03 10:49:48)
Difficulty: 1 of 5Under Brother of Ages (in General)
Posted on 2006-07-03 (8 Comments)
Solution Short by Old Original Oskar! (2006-07-03 11:54:51)
Difficulty: 4 of 5Under Play fair in Europe! (in Cryptography)
Posted on 2006-06-29 (12 Comments)
Some Thoughts A big, BIG, hint by Old Original Oskar! (2006-06-30 15:24:36)
Difficulty: 2 of 5Under A Digital Root Problem (in Just Math)
Posted on 2006-06-29 (10 Comments)
Solution Answer by Old Original Oskar! (2006-06-29 14:33:30)
Difficulty: 4 of 5Under Gardener's Woe (in Just Math)
Posted on 2006-06-24 (26 Comments)
Some Thoughts Some thinking by Old Original Oskar! (2006-06-24 12:50:04)
Difficulty: 3 of 5Under A case of misguided sheep. (in Riddles)
Posted on 2006-06-23 (22 Comments)
Some Thoughts Sheepish answer by Old Original Oskar! (2006-06-23 09:00:10)
Difficulty: 3 of 5Under Palindromic number counting (in Numbers)
Posted on 2006-06-22 (3 Comments)
Some Thoughts Zeroes allowed? by Old Original Oskar! (2006-06-22 12:47:15)
Difficulty: 3 of 5Under Black and white hats (in Logic)
Posted on 2006-06-15 (20 Comments)
Some Thoughts No reason by Old Original Oskar! (2006-06-15 12:47:00)
Difficulty: 3 of 5Under All Four Suits (in Probability)
Posted on 2006-06-06 (8 Comments)
Some Thoughts Too hard by hand by Old Original Oskar! (2006-06-12 21:30:56)
Difficulty: 4 of 5Under Needed: Number Nineteen! (in General)
Posted on 2006-06-01 (13 Comments)
Some Thoughts re: Answer by Old Original Oskar! (2006-06-01 15:36:47)
Difficulty: 4 of 5Under Another Quintic Problem (in Just Math)
Posted on 2006-05-31 (5 Comments)
Some Thoughts re(2): Who needs p and q? (SPOILER) by Old Original Oskar! (2006-05-31 21:49:13)
Solution Who needs p and q? (SPOILER) by Old Original Oskar! (2006-05-31 13:11:01)
Difficulty: 3 of 5Under Game Over! (in Probability)
Posted on 2006-05-22 (14 Comments)
Some Thoughts No proof either by Old Original Oskar! (2006-05-22 10:40:01)
Some Thoughts No proof by Old Original Oskar! (2006-05-22 10:38:04)
Difficulty: 1 of 5Under Square = half itself? (in Shapes)
Posted on 2006-05-04 (19 Comments)
Some Thoughts re: alternatives by Old Original Oskar! (2006-05-04 14:15:55)
Difficulty: 3 of 5Under Look Ma, no integrals! (in Calculus)
Posted on 2006-05-02 (14 Comments)
Solution re(2): My (cryptic, mysterious, sibylline) Way by Old Original Oskar! (2006-05-02 16:16:55)
Hints/Tips My (cryptic, mysterious, sibylline) Way by Old Original Oskar! (2006-05-02 16:03:14)
Difficulty: 3 of 5Under Poker People (in General)
Posted on 2006-04-27 (6 Comments)
Solution In two characters by Old Original Oskar! (2006-04-27 13:34:29)
Difficulty: 2 of 5Under 4 tries (in Just Math)
Posted on 2006-04-24 (8 Comments)
Solution re(2): Big hint, almost a spoiler by Old Original Oskar! (2006-04-24 14:09:13)
Hints/Tips Big hint, almost a spoiler by Old Original Oskar! (2006-04-24 08:59:01)
Difficulty: 3 of 5Under Cristofori meets Newton (in Cryptography)
Posted on 2006-04-22 (6 Comments)
Hints/Tips Half a Hint? by Old Original Oskar! (2006-04-23 01:15:37)
Difficulty: 3 of 5Under Classical Rules 1 (in Numbers)
Posted on 2006-04-17 (10 Comments)
Some Thoughts A simple solution by Old Original Oskar! (2006-04-17 12:49:42)
Difficulty: 1 of 5Under Once upon a time . . . (in General)
Posted on 2006-04-11 (8 Comments)
Hints/Tips re: A Guess... by Old Original Oskar! (2006-04-11 13:18:31)
Difficulty: 2 of 5Under The Dilemma of a Prisoner part 1 (in Tricks)
Posted on 2006-03-30 (16 Comments)
Hints/Tips No need for plants or animals by Old Original Oskar! (2006-03-30 14:56:05)
Difficulty: 4 of 5Under Sum to Infinity - 1 (in Sequences)
Posted on 2006-03-11 (12 Comments)
Solution Solution by Series by Old Original Oskar! (2006-03-11 22:14:24)
Difficulty: 2 of 5Under Hymn Numbers (in Numbers)
Posted on 2005-12-07 (6 Comments)
Some Thoughts re: First try -- a trick by Old Original Oskar! (2005-12-07 08:14:12)
Difficulty: 1 of 5Under Add a third (in Word Problems)
Posted on 2005-12-02 (23 Comments)
Solution As the Pope would say... by Old Original Oskar! (2005-12-02 08:42:22)
Difficulty: 3 of 5Under Product Rule (in Calculus)
Posted on 2005-11-30 (2 Comments)
Solution Differential Solution by Old Original Oskar! (2005-11-30 11:55:29)
Difficulty: 3 of 5Under ZGYZHS (in Cryptography)
Posted on 2005-11-11 (4 Comments)
Hints/Tips Another equation (no spoiler) by Old Original Oskar! (2005-11-11 11:56:09)
Difficulty: 3 of 5Under I Only Need Two (in Weights and Scales)
Posted on 2005-11-09 (5 Comments)
re: One weigh or another (2) by Old Original Oskar! (2005-11-09 14:12:02)
Difficulty: 2 of 5Under The Dice Game (in Games)
Posted on 2005-11-04 (12 Comments)
Solution Solution by Old Original Oskar! (2005-11-04 08:27:19)
Difficulty: 2 of 5Under Once a liar, always a liar (in Logic)
Posted on 2005-11-02 (26 Comments)
Some Thoughts Psychological answer by Old Original Oskar! (2005-11-02 07:44:40)
Difficulty: 3 of 5Under The undiscovered numbers (in Logic)
Posted on 2005-10-29 (32 Comments)
Some Thoughts Don't get it by Old Original Oskar! (2005-10-30 19:00:08)
Difficulty: 3 of 5Under 2nd difference sequence (in Sequences)
Posted on 2005-10-22 (11 Comments)
Solution No spoiler by Old Original Oskar! (2005-10-23 18:32:25)
Difficulty: 3 of 5Under Isosceles Right Triangles (in Geometry)
Posted on 2005-10-19 (10 Comments)
Solution A complex way by Old Original Oskar! (2005-10-19 22:01:31)
Difficulty: 2 of 5Under Scratch a Home Run! (in Probability)
Posted on 2005-10-18 (8 Comments)
Some Thoughts By Computer? by Old Original Oskar! (2005-10-18 09:33:39)
Some Thoughts By Computer? by Old Original Oskar! (2005-10-18 09:33:35)
Difficulty: 2 of 5Under Another one of those niiice looong sequences (in Sequences)
Posted on 2005-09-29 (5 Comments)
Solution Simple Solution Start by Old Original Oskar! (2005-10-03 13:39:49)
Hints/Tips Helpful Hopeless Hint by Old Original Oskar! (2005-09-29 16:00:53)
Difficulty: 2 of 5Under a, b and c (in Numbers)
Posted on 2005-09-27 (12 Comments)
Solution No computer, very short by Old Original Oskar! (2005-09-27 13:43:57)
Difficulty: 2 of 5Under Shorten and halve (in Word Problems)
Posted on 2005-09-21 (32 Comments)
Some Thoughts I hope this isn't it by Old Original Oskar! (2005-09-23 19:39:22)
Difficulty: 2 of 5Under Star of David (in General)
Posted on 2005-09-20 (10 Comments)
Solution re(2): Accomplishing the goal - WRONG by Old Original Oskar! (2005-09-20 15:18:18)
Difficulty: 4 of 5Under Five Fives (in Numbers)
Posted on 2005-09-18 (391 Comments)
Solution Three solutions by Old Original Oskar! (2005-09-18 12:45:39)
Difficulty: 2 of 5Under The reversed numbers (in Just Math)
Posted on 2005-09-16 (7 Comments)
Solution Two answers by Old Original Oskar! (2005-09-16 19:30:53)
Difficulty: 3 of 5Under Odd people (in Liars and Knights)
Posted on 2005-09-12 (13 Comments)
A cop out by Old Original Oskar! (2005-09-12 16:42:49)
Some Thoughts re(2): a solution? by Old Original Oskar! (2005-09-12 15:35:53)
Difficulty: 3 of 5Under No n-th Powers Here! (in Just Math)
Posted on 2005-09-05 (7 Comments)
Some Thoughts re: Solution? by Old Original Oskar! (2005-09-05 15:03:53)
Difficulty: 3 of 5Under A greek guilt (in Liars and Knights)
Posted on 2005-09-04 (10 Comments)
Some Thoughts re: may be.. something is wrong by Old Original Oskar! (2005-09-05 12:08:00)
Difficulty: 4 of 5Under Britannia Rul-ed The Waves Part 3 (in Sequences)
Posted on 2005-08-25 (11 Comments)
Some Thoughts re: Lets not be too Hastings by Old Original Oskar! (2005-08-29 18:22:58)
Difficulty: 3 of 5Under Find a subset (in Just Math)
Posted on 2005-08-24 (6 Comments)
Some Thoughts A particular case by Old Original Oskar! (2005-09-01 16:24:59)
Some Thoughts re: what is a subset? by Old Original Oskar! (2005-08-24 19:09:05)
Difficulty: 2 of 5Under Medially Similar (in Geometry)
Posted on 2005-08-19 (3 Comments)
Solution A different way by Old Original Oskar! (2005-08-19 17:39:53)
Difficulty: 3 of 5Under Where is the White King? (in Games)
Posted on 2005-08-05 (21 Comments)
Some Thoughts re: Observations -- and a hint by Old Original Oskar! (2005-08-05 16:55:12)
Difficulty: 3 of 5Under Pair Playing Probability (in Probability)
Posted on 2005-08-02 (31 Comments)
Some Thoughts re: I undestood right? - no, WRONG. by Old Original Oskar! (2005-08-02 15:53:45)
Difficulty: 1 of 5Under Another Pattern of Numbers (in Numbers)
Posted on 2005-07-29 (17 Comments)
Some Thoughts If the answer doesn't fit... by Old Original Oskar! (2005-07-29 18:47:43)
Difficulty: 3 of 5Under Three couples, one problem (in Logic)
Posted on 2005-07-25 (21 Comments)
Solution Reasoned out by Old Original Oskar! (2005-07-26 18:08:08)
Some Thoughts re: Tricky (spoiler) by Old Original Oskar! (2005-07-26 01:07:43)
Difficulty: 2 of 5Under MovieMadness (in Sequences)
Posted on 2005-07-20 (22 Comments)
Some Thoughts No idea... by Old Original Oskar! (2005-07-20 05:02:17)
Difficulty: 3 of 5Under Jump around (in Algorithms)
Posted on 2005-07-09 (7 Comments)
Solution re: Why does it stop? by Old Original Oskar! (2005-07-10 01:27:43)
Some Thoughts Why does it stop? by Old Original Oskar! (2005-07-10 01:17:36)
Difficulty: 2 of 5Under 123456 (in Numbers)
Posted on 2005-07-04 (21 Comments)
re: Trial and Error by Old Original Oskar! (2005-07-04 19:34:01)
Difficulty: 3 of 5Under A classic game (in Numbers)
Posted on 2005-06-22 (9 Comments)
Some Thoughts re: Since I donīt have a computer... -- WRONG by Old Original Oskar! (2005-06-22 21:38:41)
Difficulty: 3 of 5Under Similar Sides Sought (in Geometry)
Posted on 2005-06-20 (6 Comments)
BIG GOOF by Old Original Oskar! (2005-06-20 19:51:25)
Difficulty: 3 of 5Under L.A. to Hawaii (in Science)
Posted on 2005-06-17 (11 Comments)
Solution The right answers (no spoilers( by Old Original Oskar! (2005-06-17 17:32:13)
Difficulty: 5 of 5Under Elemental game (in Probability)
Posted on 2005-06-16 (17 Comments)
Some Thoughts How to solve this by Old Original Oskar! (2005-06-16 22:36:27)
Difficulty: 3 of 5Under Unusual binary representation (in Numbers)
Posted on 2005-06-14 (9 Comments)
Some Thoughts re: Negabinary by Old Original Oskar! (2005-06-15 00:09:14)
Difficulty: 3 of 5Under Perplexing Polynomial Puzzle (in Numbers)
Posted on 2005-06-13 (6 Comments)
Solution Another solution by Old Original Oskar! (2005-06-13 21:55:47)
Difficulty: 2 of 5Under The test of the suits (in General)
Posted on 2005-06-07 (15 Comments)
Solution Short and Sweet (no spoiler) by Old Original Oskar! (2005-06-07 14:01:13)
Difficulty: 2 of 5Under Too many threes and sixes (in Just Math)
Posted on 2005-05-25 (10 Comments)
Solution Solution with proof by Old Original Oskar! (2005-05-25 18:29:13)
Difficulty: 2 of 5Under Discriminants (in Numbers)
Posted on 2005-05-24 (7 Comments)
Solution Solution (no explanation given) by Old Original Oskar! (2005-05-24 14:11:21)
Difficulty: 3 of 5Under Cut Wire (in Calculus)
Posted on 2005-05-20 (6 Comments)
Solution Agree by Old Original Oskar! (2005-05-21 01:03:58)
Difficulty: 4 of 5Under Make it solvable (in Numbers)
Posted on 2005-05-05 (16 Comments)
Some Thoughts General solution by Old Original Oskar! (2005-05-05 19:56:06)
Difficulty: 3 of 5Under Find the Numbers missing (in Numbers)
Posted on 2005-04-28 (18 Comments)
Solution Solution by differences by Old Original Oskar! (2005-04-28 20:27:49)
Difficulty: 4 of 5Under Just find two! (in Geometry)
Posted on 2005-04-27 (25 Comments)
Some Thoughts re(3): May not be possible by Old Original Oskar! (2005-04-27 20:19:07)
Difficulty: 3 of 5Under 1000th digit (in Numbers)
Posted on 2005-04-26 (30 Comments)
Some Thoughts Chang = Intentionally obtuse? by Old Original Oskar! (2005-04-29 16:08:19)
Some Thoughts re: Solution by Old Original Oskar! (2005-04-27 12:59:05)
Difficulty: 2 of 5Under Route Step, MARCH (in Science)
Posted on 2005-04-16 (9 Comments)
Some Thoughts Guesses by Old Original Oskar! (2005-04-16 14:50:05)
Difficulty: 4 of 5Under The Midville Muddlers (in Logic)
Posted on 2005-04-15 (22 Comments)
Solution re: The false statement by Old Original Oskar! (2005-04-15 21:46:20)
Difficulty: 4 of 5Under Guess a number (in Algorithms)
Posted on 2005-04-14 (19 Comments)
"In advance" by Old Original Oskar! (2005-04-14 21:36:26)
Difficulty: 3 of 5Under Sports Starters (in Word Problems)
Posted on 2005-04-11 (24 Comments)
Some Thoughts Seventh by Old Original Oskar! (2005-04-12 23:19:56)
re: A thought by Old Original Oskar! (2005-04-12 23:18:25)
Difficulty: 2 of 5Under Counting Sand (in Algorithms)
Posted on 2005-04-07 (8 Comments)
Solution A variation by Old Original Oskar! (2005-04-12 23:27:08)
Some Thoughts re: One way by Old Original Oskar! (2005-04-07 16:04:29)
Difficulty: 2 of 5Under Black ants marching (in Riddles)
Posted on 2005-03-31 (23 Comments)
Solution The ONE by Old Original Oskar! (2005-04-04 18:51:52)
Hints/Tips re: Solution (still no spoilers) by Old Original Oskar! (2005-03-31 19:29:33)
Solution (no spoiler) by Old Original Oskar! (2005-03-31 15:58:37)
Difficulty: 4 of 5Under Desperately Difficult Derivative (in Calculus)
Posted on 2005-03-30 (9 Comments)
re(3): solution? by Old Original Oskar! (2005-04-04 18:54:39)
Some Thoughts re: solution? by Old Original Oskar! (2005-03-30 20:50:05)
Difficulty: 2 of 5Under Pegless Painting Plummets! (in General)
Posted on 2005-03-29 (19 Comments)
Some Thoughts re: A solution with a wire... by Old Original Oskar! (2005-03-29 21:10:36)
Some Thoughts re: Another solution... by Old Original Oskar! (2005-03-29 21:08:31)
Some Thoughts re: One solution... by Old Original Oskar! (2005-03-29 21:05:35)
Difficulty: 2 of 5Under Easy Money (in Just Math)
Posted on 2005-03-28 (3 Comments)
Solution Solution by Old Original Oskar! (2005-03-28 15:13:53)
Difficulty: 3 of 5Under Wonderful Water Works (in Weights and Scales)
Posted on 2005-03-19 (5 Comments)
Hints/Tips Solutions don't work by Old Original Oskar! (2005-03-20 13:55:44)
Difficulty: 4 of 5Under Make it go! (in Science)
Posted on 2005-03-18 (17 Comments)
First part by Old Original Oskar! (2005-03-18 19:59:26)
Difficulty: 3 of 5Under Broken Hypotenuse (in Geometry)
Posted on 2005-02-28 (10 Comments)
Solution A possible solution by Old Original Oskar! (2005-02-28 18:39:37)
Difficulty: 3 of 5Under The poisonous wine (in Just Math)
Posted on 2005-02-26 (21 Comments)
Solution Some statistics by Old Original Oskar! (2005-02-28 14:17:26)
Difficulty: 4 of 5Under Lucky Numbers (in Numbers)
Posted on 2005-02-19 (5 Comments)
Solution Believe it or not! by Old Original Oskar! (2005-02-19 16:30:48)
Difficulty: 4 of 5Under Biased Coins (in Just Math)
Posted on 2005-02-17 (9 Comments)
Solution Simple solution by Old Original Oskar! (2005-02-18 10:51:17)
Difficulty: 2 of 5Under What song? (in Riddles)
Posted on 2005-02-16 (22 Comments)
Solution Solution by Old Original Oskar! (2005-02-16 15:10:14)
Difficulty: 2 of 5Under Sweet Sixteener (in Numbers)
Posted on 2005-02-03 (5 Comments)
Some Thoughts re: Solution -- wrong by Old Original Oskar! (2005-02-03 18:12:16)
Solution Answer by Old Original Oskar! (2005-02-03 15:03:24)
Difficulty: 2 of 5Under Consecutive Primes (in Just Math)
Posted on 2005-01-24 (6 Comments)
Solution Solution by Old Original Oskar! (2005-01-24 13:56:19)
Difficulty: 3 of 5Under ‘,.pyf versus h.soav (in Cryptography)
Posted on 2005-01-21 (14 Comments)
Some Thoughts re: Half a solution by Old Original Oskar! (2005-01-25 14:32:03)
Solution Half a solution by Old Original Oskar! (2005-01-21 19:12:42)
Solution Half a solution by Old Original Oskar! (2005-01-21 19:12:34)
Difficulty: 3 of 5Under All integers (in Geometry)
Posted on 2005-01-17 (14 Comments)
Solution Solution, by hand by Old Original Oskar! (2005-01-18 16:29:55)
Difficulty: 3 of 5Under Square pairs (in Numbers)
Posted on 2005-01-09 (12 Comments)
Solution Graph theory by Old Original Oskar! (2005-01-10 17:04:35)
Difficulty: 1 of 5Under Another Simple Sequence (in Sequences)
Posted on 2004-12-22 (10 Comments)
Solution Solution by Old Original Oskar! (2004-12-22 13:32:27)
Difficulty: 2 of 5Under Formal Reasoning (in Logic)
Posted on 2004-12-15 (60 Comments)
Solution Solution by Old Original Oskar! (2004-12-15 12:59:10)
Difficulty: 4 of 5Under The sum of a sequence (in Just Math)
Posted on 2004-12-14 (10 Comments)
Solution Solution by Old Original Oskar! (2004-12-14 17:49:25)
Difficulty: 2 of 5Under 1 To 15 in a 3x5 Array (in Numbers)
Posted on 2004-12-09 (11 Comments)
Solution A solution by Old Original Oskar! (2004-12-09 15:04:56)
Difficulty: 3 of 5Under High Rollers (in Probability)
Posted on 2004-12-08 (6 Comments)
Some Thoughts No Subject by Old Original Oskar! (2004-12-08 18:04:15)
Difficulty: 2 of 5Under The Logician's Birthday (in Logic)
Posted on 2004-11-17 (60 Comments)
Solution Simple Short Sideways Solution by Old Original Oskar! (2004-11-17 07:16:56)
Difficulty: 3 of 5Under The Card Sorting Machine (in Algorithms)
Posted on 2004-11-12 (4 Comments)
Solution A solution for CS people by Old Original Oskar! (2004-11-12 09:03:44)
Difficulty: 3 of 5Under Letters missing from letters. (in Sequences)
Posted on 2004-11-11 (7 Comments)
Solution Surely Short Solution by Old Original Oskar! (2004-11-13 07:34:48)
Difficulty: 3 of 5Under Rameses' Pyramid (in General)
Posted on 2004-11-05 (15 Comments)
Some Thoughts All Answers Are Awry? by Old Original Oskar! (2004-11-05 13:17:34)
Difficulty: 2 of 5Under Who's the boss? (in Cryptography)
Posted on 2004-10-29 (8 Comments)
Solution Solution (no spoiler) by Old Original Oskar! (2004-10-29 13:35:54)
Difficulty: 3 of 5Under Triangular Coordinates (in Numbers)
Posted on 2004-10-26 (11 Comments)
Solution Solution by Old Original Oskar! (2004-10-26 18:24:04)
Difficulty: 3 of 5Under Select an Item (in Algorithms)
Posted on 2004-10-22 (13 Comments)
Solution Very Simple by Old Original Oskar! (2004-10-22 16:01:20)
Difficulty: 3 of 5Under Square Perfection (in Shapes)
Posted on 2004-10-16 (4 Comments)
Hints/Tips Big hint and spoiler by Old Original Oskar! (2004-10-16 16:22:35)
Difficulty: 2 of 5Under Equiangular Hexagons (in Shapes)
Posted on 2004-10-15 (8 Comments)
Solution Second part by Old Original Oskar! (2004-10-15 14:03:53)
Difficulty: 2 of 5Under Your spelling is very bad (in Cryptography)
Posted on 2004-10-07 (16 Comments)
Solution Answer by Old Original Oskar! (2004-10-07 08:17:09)
Difficulty: 2 of 5Under Sequencing problems (in Numbers)
Posted on 2004-10-01 (8 Comments)
Solution Answer by Old Original Oskar! (2004-10-01 11:17:41)
Difficulty: 2 of 5Under Merit Review (in Sequences)
Posted on 2004-09-28 (6 Comments)
Solution Answer by Old Original Oskar! (2004-09-28 11:52:33)
Difficulty: 3 of 5Under Fill in the blanks (2) (in General)
Posted on 2004-09-28 (13 Comments)
Solution Solution by Old Original Oskar! (2004-09-28 08:49:30)
Difficulty: 2 of 5Under At the Olympic Games (6) (in Logic)
Posted on 2004-09-27 (47 Comments)
Solution Answer (fully explained) by Old Original Oskar! (2004-09-27 12:15:58)
Difficulty: 4 of 5Under Spot the Difference (in Sequences)
Posted on 2004-09-26 (9 Comments)
Some Thoughts Answer? by Old Original Oskar! (2004-09-26 08:17:13)
Difficulty: 3 of 5Under Rare Rotative Relationship! (in Numbers)
Posted on 2004-09-23 (13 Comments)
Some Thoughts re: Another idea by Old Original Oskar! (2004-09-27 12:20:30)
Difficulty: 3 of 5Under Squaring shapes: (in Geometry)
Posted on 2004-09-22 (9 Comments)
Some Thoughts re(2): Solution by Old Original Oskar! (2004-09-22 18:04:33)
Solution Solution by Old Original Oskar! (2004-09-22 13:33:46)
Difficulty: 2 of 5Under Fill in the blanks. (in General)
Posted on 2004-09-22 (15 Comments)
Solution Answer by Old Original Oskar! (2004-09-22 08:34:34)
Difficulty: 3 of 5Under More Archery Practice (in Numbers)
Posted on 2004-09-21 (14 Comments)
Solution Answer by Old Original Oskar! (2004-09-21 12:12:10)
Difficulty: 4 of 5Under Get one half by squaring (in Just Math)
Posted on 2004-09-20 (31 Comments)
Shorter solutions? by Old Original Oskar! (2004-09-22 05:52:24)
Difficulty: 2 of 5Under Differential Cryptography (in Cryptography)
Posted on 2004-09-19 (7 Comments)
Some Thoughts Answer by Old Original Oskar! (2004-09-19 12:52:34)
Difficulty: 2 of 5Under Hidden Elements (in Science)
Posted on 2004-09-17 (15 Comments)
Solution Answer by Old Original Oskar! (2004-09-17 09:14:03)
Difficulty: 3 of 5Under Word relations (in Word Problems)
Posted on 2004-09-14 (7 Comments)
Solution Answer by Old Original Oskar! (2004-09-14 08:11:06)
Difficulty: 3 of 5Under Hawks and Doves (in Probability)
Posted on 2004-09-13 (22 Comments)
Final part by Old Original Oskar! (2004-09-13 09:42:05)
Difficulty: 1 of 5Under Gonna party like it's 1999 (in Just Math)
Posted on 2004-09-12 (7 Comments)
Solution Answer by Old Original Oskar! (2004-09-12 10:48:50)
Difficulty: 2 of 5Under Harder Russian Roulette (in Probability)
Posted on 2004-09-11 (20 Comments)
Solution Answers by Old Original Oskar! (2004-09-11 21:41:48)
Difficulty: 3 of 5Under Nine kids (in Numbers)
Posted on 2004-09-09 (22 Comments)
Some Thoughts re: Brute force solutions (spoilers) by Old Original Oskar! (2004-09-09 10:14:51)
Some Thoughts Duplicate ages? by Old Original Oskar! (2004-09-09 10:13:35)
Difficulty: 1 of 5Under Another last digit (in Numbers)
Posted on 2004-09-07 (10 Comments)
Solution Simpler solution by Old Original Oskar! (2004-09-07 07:01:06)
Difficulty: 2 of 5Under Four-letter insert? (in Word Problems)
Posted on 2004-09-06 (10 Comments)
Some Thoughts re: All seven by Old Original Oskar! (2004-09-06 09:42:38)
Difficulty: 3 of 5Under Ten Words (3) (in Word Problems)
Posted on 2004-09-05 (13 Comments)
Solution No Subject by Old Original Oskar! (2004-09-06 09:51:47)
Difficulty: 2 of 5Under Missing digits (in Just Math)
Posted on 2004-09-04 (9 Comments)
Solution Answer by Old Original Oskar! (2004-09-04 18:47:50)
Difficulty: 2 of 5Under Measure that angle II (in Geometry)
Posted on 2004-09-01 (16 Comments)
Solution Simple by Old Original Oskar! (2004-09-01 09:57:08)
Difficulty: 3 of 5Under Prime Cross Letters (in Numbers)
Posted on 2004-08-24 (5 Comments)
Solution (Almost) by hand by Old Original Oskar! (2004-08-24 08:26:21)
Difficulty: 3 of 5Under Sins of the Gambler (in Probability)
Posted on 2004-08-23 (6 Comments)
Solution Classic martingale by Old Original Oskar! (2004-08-23 09:12:34)
Difficulty: 4 of 5Under Provably unprovable? (in Paradoxes)
Posted on 2004-08-22 (36 Comments)
Some Thoughts Just thinking by Old Original Oskar! (2004-08-22 11:40:41)
Difficulty: 3 of 5Under Summing inverses (in Calculus)
Posted on 2004-08-19 (18 Comments)
Solution A short solution by Old Original Oskar! (2004-08-19 11:28:19)
Some Thoughts re: Counterintuitive by Old Original Oskar! (2004-08-19 11:25:30)
Difficulty: 4 of 5Under Friday the 13th (in General)
Posted on 2004-08-13 (13 Comments)
Some Thoughts re: umm... by Old Original Oskar! (2004-08-13 09:57:05)
Difficulty: 4 of 5Under Unknown Digits (in Numbers)
Posted on 2004-08-11 (8 Comments)
Solution My reasoning by Old Original Oskar! (2004-08-11 13:40:31)
Solution By hand by Old Original Oskar! (2004-08-11 13:29:05)
Difficulty: 3 of 5Under Ten Words (2) (in Word Problems)
Posted on 2004-08-10 (13 Comments)
Solution Solution, with variants by Old Original Oskar! (2004-08-10 09:57:48)
Difficulty: 5 of 5Under Converging Circumference (in General)
Posted on 2004-08-09 (4 Comments)
Solution Web solution by Old Original Oskar! (2004-08-09 14:21:32)
Difficulty: 4 of 5Under A Cute Dissection (in Geometry)
Posted on 2004-08-06 (6 Comments)
Solution Answer in seven by Old Original Oskar! (2004-08-06 13:59:52)
Difficulty: 2 of 5Under Sharing a Plot (in Geometry)
Posted on 2004-08-05 (4 Comments)
Solution Quick by Old Original Oskar! (2004-08-05 08:24:56)
Difficulty: 3 of 5Under tic-tac-toe (in Probability)
Posted on 2004-07-30 (14 Comments)
Solution Answer by Old Original Oskar! (2004-07-30 13:01:15)
Difficulty: 4 of 5Under Three Circles (in Geometry)
Posted on 2004-07-28 (7 Comments)
Some Thoughts Soddy's Circles by Old Original Oskar! (2004-07-28 12:29:07)
Difficulty: 1 of 5Under funny numbers (in Numbers)
Posted on 2004-07-28 (19 Comments)
Solution Answer by Old Original Oskar! (2004-07-28 08:22:36)
Difficulty: 4 of 5Under Perfect square? (in Numbers)
Posted on 2004-07-23 (12 Comments)
Solution Short solution by Old Original Oskar! (2004-07-23 13:40:31)
Difficulty: 3 of 5Under Different Sums (in Numbers)
Posted on 2004-07-22 (17 Comments)
Solution re(2): Curious second differences by Old Original Oskar! (2004-07-22 13:04:49)
Difficulty: 1 of 5Under Who plays next? (in Games)
Posted on 2004-07-19 (13 Comments)
Solution Liar ! by Old Original Oskar! (2004-07-19 08:16:33)
Difficulty: 3 of 5Under Subsetting a set (in Numbers)
Posted on 2004-06-29 (9 Comments)
Solution Second part by Old Original Oskar! (2004-06-29 13:59:41)
Difficulty: 3 of 5Under Root Route (in Algorithms)
Posted on 2004-06-29 (7 Comments)
Solution Three iterations by Old Original Oskar! (2004-06-29 08:25:56)
Difficulty: 3 of 5Under Magic-in-more-than-one-way Square (in Numbers)
Posted on 2004-06-24 (11 Comments)
Solution Yet another (different) solution by Old Original Oskar! (2004-06-24 14:12:15)
Difficulty: 3 of 5Under Coin tossing (in Probability)
Posted on 2004-06-11 (25 Comments)
Some Thoughts re(2): Markov chain solution - 2nd part by Old Original Oskar! (2004-06-13 10:24:11)
Solution Markov chain solution - 2nd part by Old Original Oskar! (2004-06-12 23:09:11)
Solution Markov chain solution - 1st part by Old Original Oskar! (2004-06-12 23:04:29)
Some Thoughts Markov chain solution by Old Original Oskar! (2004-06-12 22:55:14)
Some Thoughts re: solution by Old Original Oskar! (2004-06-12 00:04:51)
Difficulty: 3 of 5Under Random Number Generator (in Algorithms)
Posted on 2004-06-08 (26 Comments)
Some Thoughts re: This little program doesn't do the trick... by Old Original Oskar! (2004-06-08 15:45:42)
Difficulty: 2 of 5Under The Knavy (in Liars and Knights)
Posted on 2004-05-27 (21 Comments)
Some Thoughts re: Solution by Old Original Oskar! (2004-05-27 08:12:20)
Difficulty: 2 of 5Under Symmetrical words (in Word Problems)
Posted on 2004-05-21 (17 Comments)
Some Thoughts re(3): Who needs a Computer search ????? by Old Original Oskar! (2004-05-21 12:45:53)
Difficulty: 3 of 5Under A Coin Game (in Probability)
Posted on 2004-05-20 (11 Comments)
Solution Answer by Old Original Oskar! (2004-05-20 14:17:57)
Difficulty: 3 of 5Under Pythagorean Plus One (in Numbers)
Posted on 2004-05-17 (20 Comments)
Some Thoughts Solution?? by Old Original Oskar! (2004-05-17 08:50:36)
Difficulty: 1 of 5Under Ping Pong Poise (in General)
Posted on 2004-05-13 (16 Comments)
Solution Dumb solution? by Old Original Oskar! (2004-05-13 07:52:20)
Difficulty: 1 of 5Under What am I? (in Riddles)
Posted on 2004-05-10 (51 Comments)
Solution Solution by Old Original Oskar! (2004-05-10 10:03:01)
Difficulty: 1 of 5Under kst (in Tricks)
Posted on 2004-05-03 (14 Comments)
Solution Solution by Old Original Oskar! (2004-05-03 10:11:19)
Difficulty: 3 of 5Under Walking the Roads (in Logic)
Posted on 2004-05-01 (6 Comments)
Solution Solution by Old Original Oskar! (2004-05-01 18:09:41)
Difficulty: 3 of 5Under Pythagorean Pyramid (in Geometry)
Posted on 2004-04-26 (15 Comments)
Some Thoughts re: Solution by Old Original Oskar! (2004-04-26 17:46:50)
Solution Geometrically by Old Original Oskar! (2004-04-26 10:27:19)
Hints/Tips Is this true? by Old Original Oskar! (2004-04-26 09:28:51)
Difficulty: 2 of 5Under Liar, Liar, Pants on Fire. (in Liars and Knights)
Posted on 2004-04-21 (11 Comments)
Solution Methodically by Old Original Oskar! (2004-04-21 08:33:30)
Difficulty: 2 of 5Under Rotating an array (in Algorithms)
Posted on 2004-04-19 (26 Comments)
Solution A better way, from the beginning by Old Original Oskar! (2004-04-19 20:56:04)
Some Thoughts A possible way by Old Original Oskar! (2004-04-19 17:51:17)
Difficulty: 2 of 5Under Summing (in Just Math)
Posted on 2004-04-16 (5 Comments)
Some Thoughts The sum by Old Original Oskar! (2004-04-16 13:46:40)
Difficulty: 3 of 5Under Shortest Long Number (in Paradoxes)
Posted on 2004-04-15 (49 Comments)
Solution Berry Paradox by Old Original Oskar! (2004-04-15 14:47:27)
Difficulty: 3 of 5Under The many sages (in Logic)
Posted on 2004-04-13 (24 Comments)
Solution Inductively by Old Original Oskar! (2004-04-13 10:47:56)
Difficulty: 2 of 5Under Ahnentafel Questions (I) (in General)
Posted on 2004-04-11 (15 Comments)
re(3): Thanks heaps! by Old Original Oskar! (2004-04-13 10:56:00)
Difficulty: 3 of 5Under Disjointification (in Just Math)
Posted on 2004-04-04 (12 Comments)
Some Thoughts Missing part of the proof by Old Original Oskar! (2004-04-13 10:58:49)
Difficulty: 2 of 5Under An inconsistent climber (in General)
Posted on 2002-04-25 (10 Comments)
Some Thoughts Comment by Old Original Oskar! (2005-02-22 11:02:28)
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