 Under Linear and quadratic (in Calculus)
Posted on 2007-10-23 (9 Comments) |
 |  By limits by Old Original Oskar! (2007-10-24 00:08:37) |
 Under Rationalizing Decimals (in Numbers)
Posted on 2007-09-26 (8 Comments) |
| Short by Old Original Oskar! (2007-09-26 13:26:51) |
Under Polynomial Divisions (in Calculus)
Posted on 2007-08-13 (3 Comments) |
| Solution by Old Original Oskar! (2007-08-13 07:47:29) |
Under Tough Puzzle (part 1) (in Numbers)
Posted on 2007-08-09 (4 Comments) |
|  First solution by Old Original Oskar! (2007-08-09 23:44:43) |
Under Quadruple Agent (in Probability)
Posted on 2007-07-25 (12 Comments) |
|  re: a probable solution by Old Original Oskar! (2007-07-26 11:58:08) |
Under Take Perpendicular Distances, Get One Side (in Geometry)
Posted on 2007-07-08 (4 Comments) |
| Trivial second part by Old Original Oskar! (2007-07-09 09:48:37) |
 Under 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) |
Under A Game of Tennis (in Probability)
Posted on 2007-07-05 (6 Comments) |
| re(2): First question - disagree by Old Original Oskar! (2007-07-05 22:33:35) |
Under A grok is a grok is a ... ? (in Liars and Knights)
Posted on 2007-06-29 (11 Comments) |
| re: solution -- not by Old Original Oskar! (2007-06-29 10:15:06) |
Under sin(15)=sin(15) (in General)
Posted on 2007-06-25 (2 Comments) |
| Solution by Old Original Oskar! (2007-06-25 09:18:49) |
Under All Wrong at the Olympic Games (in Logic)
Posted on 2007-06-15 (14 Comments) |
| A worked out solution by Old Original Oskar! (2007-06-15 21:34:46) |
| re: solution (attempt) by Old Original Oskar! (2007-06-15 21:32:10) |
Under fragmented whole (in Word Problems)
Posted on 2007-06-14 (9 Comments) |
|  Some key words by Old Original Oskar! (2007-06-14 12:13:53) |
Under Exponentiate In Pairs, Get Numbers (in Just Math)
Posted on 2007-06-08 (6 Comments) |
| Proof by Old Original Oskar! (2007-06-08 09:31:56) |
Under How to pick 'em (in Logic)
Posted on 2007-05-25 (8 Comments) |
| Solution by Old Original Oskar! (2007-05-25 11:33:02) |
Under Get Real, Find The Triplets (in Just Math)
Posted on 2007-05-21 (1 Comments) |
| Solutions by Old Original Oskar! (2007-05-21 10:06:45) |
Under Rank The Magicians (in Logic)
Posted on 2007-05-08 (8 Comments) |
| Rather easy by Old Original Oskar! (2007-05-08 11:59:13) |
Under Binet returns (in Just Math)
Posted on 2007-05-04 (3 Comments) |
| Solution by Old Original Oskar! (2007-05-04 17:11:26) |
Under Three Squares (in Numbers)
Posted on 2007-05-03 (9 Comments) |
| No tries at all by Old Original Oskar! (2007-05-03 12:22:06) |
Under Sum three, get one (in Numbers)
Posted on 2007-04-25 (4 Comments) |
| One and only one by Old Original Oskar! (2007-04-25 10:06:05) |
Under Always greater (in Games)
Posted on 2007-04-14 (6 Comments) |
| A boring game by Old Original Oskar! (2007-04-15 13:37:05) |
Under Hell Hath No Fury ... (in Paradoxes)
Posted on 2007-04-12 (10 Comments) |
| No paradox by Old Original Oskar! (2007-04-12 12:16:32) |
Under Paint it black (in Probability)
Posted on 2007-04-02 (9 Comments) |
| Too big numbers by Old Original Oskar! (2007-04-02 19:39:27) |
Under Alternating sextet (in Sequences)
Posted on 2007-03-30 (7 Comments) |
| Brute force and luck by Old Original Oskar! (2007-03-31 09:07:38) |
Under Reassemble My Double (in Cryptography)
Posted on 2007-03-30 (5 Comments) |
| Bet, Just Bet by Old Original Oskar! (2007-03-31 09:01:12) |
Under Smallest Value (in Just Math)
Posted on 2007-03-27 (6 Comments) |
| Simple solution by Old Original Oskar! (2007-03-27 12:48:59) |
Under 4x4 Sudoku (in Logic)
Posted on 2007-03-19 (5 Comments) |
| Second question by Old Original Oskar! (2007-03-19 15:02:05) |
Under Further Geometric Numbers (2) (in Numbers)
Posted on 2007-03-19 (4 Comments) |
| re: Quick spoiler by Old Original Oskar! (2007-03-19 08:47:32) |
Under Front to back (in Numbers)
Posted on 2007-03-18 (3 Comments) |
| Lots of summing by Old Original Oskar! (2007-03-18 13:14:50) |
Under Square Pisano, Get Sequence? (in Sequences)
Posted on 2007-03-14 (4 Comments) |
| Proof by Old Original Oskar! (2007-03-14 14:49:54) |
Under A Consecutive Sequence ? (in Sequences)
Posted on 2007-03-09 (5 Comments) |
| Answer (no spoiler) by Old Original Oskar! (2007-03-09 09:15:45) |
Under Four Coins and Three Weighings (in Weights and Scales)
Posted on 2007-03-08 (10 Comments) |
| Almost a solution... by Old Original Oskar! (2007-03-08 15:17:12) |
Under Find the Country (in Word Problems)
Posted on 2007-01-11 (14 Comments) |
| A reasoned way by Old Original Oskar! (2007-01-11 14:52:34) |
Under Allen's Ambivalent Approximation (in Probability)
Posted on 2007-01-11 (6 Comments) |
| re: It's not as funny, but ... (spoiler) by Old Original Oskar! (2007-01-11 14:55:40) |
Under Another 2009 Problem (in Just Math)
Posted on 2006-12-26 (1 Comments) |
| Two answers by Old Original Oskar! (2006-12-26 11:13:23) |
Under Six hundred coins (in Probability)
Posted on 2006-12-22 (13 Comments) |
| Answers by Old Original Oskar! (2006-12-22 08:53:33) |
Under Red herrings (in Cryptography)
Posted on 2006-12-19 (7 Comments) |
| More than one meaning (no spoiler) by Old Original Oskar! (2006-12-19 14:07:07) |
Under No Cigar (in Numbers)
Posted on 2006-12-19 (10 Comments) |
| Much, much, much closer by Old Original Oskar! (2006-12-19 07:51:50) |
Under Colourful set (in Sequences)
Posted on 2006-12-06 (6 Comments) |
| Smaller answer by Old Original Oskar! (2006-12-06 11:45:50) |
Under A square with a circle with a point (in Geometry)
Posted on 2006-11-25 (15 Comments) |
| I beg to differ by Old Original Oskar! (2006-11-25 09:53:14) |
Under One Away II (in Cryptography)
Posted on 2006-11-23 (5 Comments) |
| Answer in kind (no spoiler) by Old Original Oskar! (2006-11-23 12:58:37) |
Under Chicken or Egg (in Tricks)
Posted on 2006-11-21 (20 Comments) |
| Eggceptional answer by Old Original Oskar! (2006-11-21 10:24:09) |
Under Favorable Numbers (in Numbers)
Posted on 2006-11-02 (5 Comments) |
| Minimalist Answer / No Spoiler by Old Original Oskar! (2006-11-02 10:56:09) |
Under A Fourth Person Problem (in Liars and Knights)
Posted on 2006-11-01 (16 Comments) |
| Swift Simple Solution by Old Original Oskar! (2006-11-01 10:52:25) |
Under Four Squared (in Logic)
Posted on 2006-10-26 (18 Comments) |
| A trivial way to solve this by Old Original Oskar! (2006-10-26 14:18:36) |
Under Threes and sevens (in Numbers)
Posted on 2006-10-25 (7 Comments) |
| Answer for 33 by Old Original Oskar! (2006-10-25 09:45:10) |
Under No rows (in Games)
Posted on 2006-10-24 (17 Comments) |
| re: No Subject - doesn't work by Old Original Oskar! (2006-10-24 10:53:59) |
Under Let them eat cake (in Geometry)
Posted on 2006-10-23 (3 Comments) |
| Regular polygon cake by Old Original Oskar! (2006-10-23 09:28:01) |
Under Shrink needed (in Algorithms)
Posted on 2006-10-18 (26 Comments) |
| No zipper exists by Old Original Oskar! (2006-10-20 09:41:12) |
Under A horse of a different color (in Liars and Knights)
Posted on 2006-09-26 (22 Comments) |
| Possibility by Old Original Oskar! (2006-09-26 10:07:49) |
Under Repeating decimals (in Numbers)
Posted on 2006-09-25 (12 Comments) |
| re(5): General solution by Old Original Oskar! (2006-09-27 11:47:07) |
| re(3): General solution by Old Original Oskar! (2006-09-26 16:14:41) |
 Under Can you match them up? (in Just Math)
Posted on 2006-09-21 (6 Comments) |
| Solutions 2 to 4 by Old Original Oskar! (2006-09-21 16:49:34) |
Under Take five! (in Numbers)
Posted on 2006-09-21 (4 Comments) |
| Solution (with mysterious hint) by Old Original Oskar! (2006-09-21 14:22:25) |
Under A permutation puzzle (in Just Math)
Posted on 2006-09-20 (6 Comments) |
| re: solution? - Nope by Old Original Oskar! (2006-09-21 13:10:13) |
 Under Magic 8's (in Numbers)
Posted on 2006-09-18 (8 Comments) |
| Smallest solution by Old Original Oskar! (2006-09-18 15:40:15) |
Under Commutative Group (in Just Math)
Posted on 2006-09-18 (8 Comments) |
| No thinking, only researching by Old Original Oskar! (2006-09-18 10:12:00) |
Under A multi-solution diophantine problem (in Just Math)
Posted on 2006-09-15 (7 Comments) |
| Many solutions (all of them?) by Old Original Oskar! (2006-09-15 11:49:40) |
Under Another Time And Work Problem (in General)
Posted on 2006-09-14 (4 Comments) |
| Second way by Old Original Oskar! (2006-09-14 15:30:26) |
Under Fermat for beginners (in Numbers)
Posted on 2006-09-14 (4 Comments) |
| All solutions by Old Original Oskar! (2006-09-14 15:36:28) |
Under No Repeats (in Games)
Posted on 2006-09-13 (7 Comments) |
| A way to solve this by Old Original Oskar! (2006-09-13 13:15:19) |
Under Freecell (in Just Math)
Posted on 2006-09-06 (7 Comments) |
| Solution by Old Original Oskar! (2006-09-06 08:30:12) |
Under As simple as it gets (in Liars and Knights)
Posted on 2006-09-02 (6 Comments) |
| Idea (no spoiler) by Old Original Oskar! (2006-09-02 16:03:38) |
Under Bananas (in Numbers)
Posted on 2006-08-28 (11 Comments) |
| re: The answer is simple by Old Original Oskar! (2006-08-30 22:08:27) |
| re: Answer by Old Original Oskar! (2006-08-29 13:14:23) |
| 1617 reasons by Old Original Oskar! (2006-08-28 09:47:30) |
Under A FIRST and SECOND Problem (in Numbers)
Posted on 2006-08-22 (5 Comments) |
| An idea, with no computer by Old Original Oskar! (2006-08-22 15:31:14) |
Under Summing or Multiplying (in Numbers)
Posted on 2006-08-21 (21 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) |
Under Millenium problem (in Numbers)
Posted on 2006-08-21 (15 Comments) |
| Dirty trick by Old Original Oskar! (2006-08-22 14:40:20) |
Under An Identity Problem (in Liars and Knights)
Posted on 2006-08-17 (11 Comments) |
| re: Quick by Old Original Oskar! (2006-08-17 22:22:56) |
Under A Real Number problem (in Just Math)
Posted on 2006-08-16 (9 Comments) |
| An idea by Old Original Oskar! (2006-08-16 13:36:40) |
Under What do I save? (in General)
Posted on 2006-08-11 (7 Comments) |
| Almost right by Old Original Oskar! (2006-08-11 09:32:53) |
Under So how small is it then? (in Numbers)
Posted on 2006-08-09 (17 Comments) |
| Solution by Old Original Oskar! (2006-08-09 14:15:26) |
Under Sign of a Permutation (in Algorithms)
Posted on 2006-08-05 (11 Comments) |
| re: What I would NOT advocate by Old Original Oskar! (2006-08-07 15:43:59) |
| Trivially? by Old Original Oskar! (2006-08-05 15:54:15) |
Under Chess Strategy (in Logic)
Posted on 2006-08-01 (8 Comments) |
| Too simple by Old Original Oskar! (2006-08-01 08:49:04) |
Under To qualify, or not to qualify (in General)
Posted on 2006-07-24 (6 Comments) |
| Spoiler by Old Original Oskar! (2006-07-24 10:22:18) |
Under Cube first, or square second (in Numbers)
Posted on 2006-07-22 (7 Comments) |
| A bet by Old Original Oskar! (2006-07-22 09:28:54) |
Under Hats and alligators (in Logic)
Posted on 2006-07-15 (19 Comments) |
| Solution by Old Original Oskar! (2006-07-15 12:54:33) |
Under 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 by Old Original Oskar! (2006-07-10 15:12:17) |
Under Multiplication Table (in Numbers)
Posted on 2006-07-07 (12 Comments) |
| A better answer by Old Original Oskar! (2006-07-07 14:34:10) |
Under Calling all pythagoreans (in Geometry)
Posted on 2006-07-03 (7 Comments) |
| A more specific result by Old Original Oskar! (2006-07-03 10:49:48) |
Under Brother of Ages (in General)
Posted on 2006-07-03 (8 Comments) |
| Short by Old Original Oskar! (2006-07-03 11:54:51) |
Under Play fair in Europe! (in Cryptography)
Posted on 2006-06-29 (13 Comments) |
| A big, BIG, hint by Old Original Oskar! (2006-06-30 15:24:36) |
Under A Digital Root Problem (in Just Math)
Posted on 2006-06-29 (10 Comments) |
| Answer by Old Original Oskar! (2006-06-29 14:33:30) |
Under Gardener's Woe (in Just Math)
Posted on 2006-06-24 (27 Comments) |
| Some thinking by Old Original Oskar! (2006-06-24 12:50:04) |
Under A case of misguided sheep. (in Riddles)
Posted on 2006-06-23 (22 Comments) |
| Sheepish answer by Old Original Oskar! (2006-06-23 09:00:10) |
Under Palindromic number counting (in Numbers)
Posted on 2006-06-22 (3 Comments) |
| Zeroes allowed? by Old Original Oskar! (2006-06-22 12:47:15) |
Under Black and white hats (in Logic)
Posted on 2006-06-15 (21 Comments) |
| No reason by Old Original Oskar! (2006-06-15 12:47:00) |
Under All Four Suits (in Probability)
Posted on 2006-06-06 (8 Comments) |
| Too hard by hand by Old Original Oskar! (2006-06-12 21:30:56) |
Under Needed: Number Nineteen! (in General)
Posted on 2006-06-01 (13 Comments) |
| re: Answer by Old Original Oskar! (2006-06-01 15:36:47) |
Under Another Quintic Problem (in Just Math)
Posted on 2006-05-31 (5 Comments) |
| re(2): Who needs p and q? (SPOILER) by Old Original Oskar! (2006-05-31 21:49:13) |
| Who needs p and q? (SPOILER) by Old Original Oskar! (2006-05-31 13:11:01) |
Under Game Over! (in Probability)
Posted on 2006-05-22 (15 Comments) |
| No proof either by Old Original Oskar! (2006-05-22 10:40:01) |
| No proof by Old Original Oskar! (2006-05-22 10:38:04) |
Under Square = half itself? (in Shapes)
Posted on 2006-05-04 (19 Comments) |
| re: alternatives by Old Original Oskar! (2006-05-04 14:15:55) |
Under Look Ma, no integrals! (in Calculus)
Posted on 2006-05-02 (14 Comments) |
| re(2): My (cryptic, mysterious, sibylline) Way by Old Original Oskar! (2006-05-02 16:16:55) |
| My (cryptic, mysterious, sibylline) Way by Old Original Oskar! (2006-05-02 16:03:14) |
Under Poker People (in General)
Posted on 2006-04-27 (7 Comments) |
| In two characters by Old Original Oskar! (2006-04-27 13:34:29) |
Under 4 tries (in Just Math)
Posted on 2006-04-24 (8 Comments) |
| re(2): Big hint, almost a spoiler by Old Original Oskar! (2006-04-24 14:09:13) |
| Big hint, almost a spoiler by Old Original Oskar! (2006-04-24 08:59:01) |
Under Cristofori meets Newton (in Cryptography)
Posted on 2006-04-22 (6 Comments) |
| Half a Hint? by Old Original Oskar! (2006-04-23 01:15:37) |
Under Classical Rules 1 (in Numbers)
Posted on 2006-04-17 (10 Comments) |
| A simple solution by Old Original Oskar! (2006-04-17 12:49:42) |
Under Once upon a time . . . (in General)
Posted on 2006-04-11 (8 Comments) |
| re: A Guess... by Old Original Oskar! (2006-04-11 13:18:31) |
Under The Dilemma of a Prisoner part 1 (in Tricks)
Posted on 2006-03-30 (17 Comments) |
| No need for plants or animals by Old Original Oskar! (2006-03-30 14:56:05) |
Under Sum to Infinity - 1 (in Sequences)
Posted on 2006-03-11 (13 Comments) |
| Solution by Series by Old Original Oskar! (2006-03-11 22:14:24) |
Under Hymn Numbers (in Numbers)
Posted on 2005-12-07 (6 Comments) |
| re: First try -- a trick by Old Original Oskar! (2005-12-07 08:14:12) |
Under Add a third (in Word Problems)
Posted on 2005-12-02 (24 Comments) |
| As the Pope would say... by Old Original Oskar! (2005-12-02 08:42:22) |
Under Product Rule (in Calculus)
Posted on 2005-11-30 (3 Comments) |
| Differential Solution by Old Original Oskar! (2005-11-30 11:55:29) |
Under ZGYZHS (in Cryptography)
Posted on 2005-11-11 (5 Comments) |
| Another equation (no spoiler) by Old Original Oskar! (2005-11-11 11:56:09) |
Under 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) |
Under The Dice Game (in Games)
Posted on 2005-11-04 (12 Comments) |
| Solution by Old Original Oskar! (2005-11-04 08:27:19) |
Under Once a liar, always a liar (in Logic)
Posted on 2005-11-02 (27 Comments) |
| Psychological answer by Old Original Oskar! (2005-11-02 07:44:40) |
Under The undiscovered numbers (in Logic)
Posted on 2005-10-29 (32 Comments) |
| Don't get it by Old Original Oskar! (2005-10-30 19:00:08) |
Under 2nd difference sequence (in Sequences)
Posted on 2005-10-22 (11 Comments) |
| No spoiler by Old Original Oskar! (2005-10-23 18:32:25) |
Under Isosceles Right Triangles (in Geometry)
Posted on 2005-10-19 (10 Comments) |
| A complex way by Old Original Oskar! (2005-10-19 22:01:31) |
Under Scratch a Home Run! (in Probability)
Posted on 2005-10-18 (9 Comments) |
| By Computer? by Old Original Oskar! (2005-10-18 09:33:39) |
| By Computer? by Old Original Oskar! (2005-10-18 09:33:35) |
Under Another one of those niiice looong sequences (in Sequences)
Posted on 2005-09-29 (6 Comments) |
| Simple Solution Start by Old Original Oskar! (2005-10-03 13:39:49) |
| Helpful Hopeless Hint by Old Original Oskar! (2005-09-29 16:00:53) |
Under a, b and c (in Numbers)
Posted on 2005-09-27 (13 Comments) |
| No computer, very short by Old Original Oskar! (2005-09-27 13:43:57) |
Under Shorten and halve (in Word Problems)
Posted on 2005-09-21 (33 Comments) |
| I hope this isn't it by Old Original Oskar! (2005-09-23 19:39:22) |
Under Star of David (in General)
Posted on 2005-09-20 (11 Comments) |
| re(2): Accomplishing the goal - WRONG by Old Original Oskar! (2005-09-20 15:18:18) |
Under Five Fives (in Numbers)
Posted on 2005-09-18 (395 Comments) |
| Three solutions by Old Original Oskar! (2005-09-18 12:45:39) |
Under The reversed numbers (in Just Math)
Posted on 2005-09-16 (8 Comments) |
| Two answers by Old Original Oskar! (2005-09-16 19:30:53) |
Under 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) |
| re(2): a solution? by Old Original Oskar! (2005-09-12 15:35:53) |
Under No n-th Powers Here! (in Just Math)
Posted on 2005-09-05 (7 Comments) |
| re: Solution? by Old Original Oskar! (2005-09-05 15:03:53) |
Under A greek guilt (in Liars and Knights)
Posted on 2005-09-04 (11 Comments) |
| re: may be.. something is wrong by Old Original Oskar! (2005-09-05 12:08:00) |
Under Britannia Rul-ed The Waves Part 3 (in Sequences)
Posted on 2005-08-25 (11 Comments) |
| re: Lets not be too Hastings by Old Original Oskar! (2005-08-29 18:22:58) |
Under Find a subset (in Just Math)
Posted on 2005-08-24 (6 Comments) |
| A particular case by Old Original Oskar! (2005-09-01 16:24:59) |
| re: what is a subset? by Old Original Oskar! (2005-08-24 19:09:05) |
Under Medially Similar (in Geometry)
Posted on 2005-08-19 (3 Comments) |
| A different way by Old Original Oskar! (2005-08-19 17:39:53) |
Under Where is the White King? (in Games)
Posted on 2005-08-05 (22 Comments) |
| re: Observations -- and a hint by Old Original Oskar! (2005-08-05 16:55:12) |
Under Pair Playing Probability (in Probability)
Posted on 2005-08-02 (32 Comments) |
| re: I undestood right? - no, WRONG. by Old Original Oskar! (2005-08-02 15:53:45) |
Under Another Pattern of Numbers (in Numbers)
Posted on 2005-07-29 (17 Comments) |
| If the answer doesn't fit... by Old Original Oskar! (2005-07-29 18:47:43) |
Under Three couples, one problem (in Logic)
Posted on 2005-07-25 (23 Comments) |
| Reasoned out by Old Original Oskar! (2005-07-26 18:08:08) |
| re: Tricky (spoiler) by Old Original Oskar! (2005-07-26 01:07:43) |
Under MovieMadness (in Sequences)
Posted on 2005-07-20 (22 Comments) |
| No idea... by Old Original Oskar! (2005-07-20 05:02:17) |
Under Jump around (in Algorithms)
Posted on 2005-07-09 (7 Comments) |
| re: Why does it stop? by Old Original Oskar! (2005-07-10 01:27:43) |
| Why does it stop? by Old Original Oskar! (2005-07-10 01:17:36) |
Under 123456 (in Numbers)
Posted on 2005-07-04 (21 Comments) |
| re: Trial and Error by Old Original Oskar! (2005-07-04 19:34:01) |
Under A classic game (in Numbers)
Posted on 2005-06-22 (10 Comments) |
| re: Since I don´t have a computer... -- WRONG by Old Original Oskar! (2005-06-22 21:38:41) |
Under Similar Sides Sought (in Geometry)
Posted on 2005-06-20 (7 Comments) |
| BIG GOOF by Old Original Oskar! (2005-06-20 19:51:25) |
Under L.A. to Hawaii (in Science)
Posted on 2005-06-17 (11 Comments) |
| The right answers (no spoilers( by Old Original Oskar! (2005-06-17 17:32:13) |
Under Elemental game (in Probability)
Posted on 2005-06-16 (17 Comments) |
| How to solve this by Old Original Oskar! (2005-06-16 22:36:27) |
Under Unusual binary representation (in Numbers)
Posted on 2005-06-14 (9 Comments) |
| re: Negabinary by Old Original Oskar! (2005-06-15 00:09:14) |
Under Perplexing Polynomial Puzzle (in Numbers)
Posted on 2005-06-13 (6 Comments) |
| Another solution by Old Original Oskar! (2005-06-13 21:55:47) |
Under The test of the suits (in General)
Posted on 2005-06-07 (16 Comments) |
| Short and Sweet (no spoiler) by Old Original Oskar! (2005-06-07 14:01:13) |
Under Too many threes and sixes (in Just Math)
Posted on 2005-05-25 (10 Comments) |
| Solution with proof by Old Original Oskar! (2005-05-25 18:29:13) |
Under Discriminants (in Numbers)
Posted on 2005-05-24 (7 Comments) |
| Solution (no explanation given) by Old Original Oskar! (2005-05-24 14:11:21) |
Under Cut Wire (in Calculus)
Posted on 2005-05-20 (7 Comments) |
| Agree by Old Original Oskar! (2005-05-21 01:03:58) |
Under Make it solvable (in Numbers)
Posted on 2005-05-05 (18 Comments) |
| General solution by Old Original Oskar! (2005-05-05 19:56:06) |
Under Find the Numbers missing (in Numbers)
Posted on 2005-04-28 (18 Comments) |
| Solution by differences by Old Original Oskar! (2005-04-28 20:27:49) |
Under Just find two! (in Geometry)
Posted on 2005-04-27 (25 Comments) |
| re(3): May not be possible by Old Original Oskar! (2005-04-27 20:19:07) |
Under 1000th digit (in Numbers)
Posted on 2005-04-26 (30 Comments) |
| Chang = Intentionally obtuse? by Old Original Oskar! (2005-04-29 16:08:19) |
| re: Solution by Old Original Oskar! (2005-04-27 12:59:05) |
Under Route Step, MARCH (in Science)
Posted on 2005-04-16 (11 Comments) |
| Guesses by Old Original Oskar! (2005-04-16 14:50:05) |
Under The Midville Muddlers (in Logic)
Posted on 2005-04-15 (23 Comments) |
| re: The false statement by Old Original Oskar! (2005-04-15 21:46:20) |
Under Guess a number (in Algorithms)
Posted on 2005-04-14 (19 Comments) |
| "In advance" by Old Original Oskar! (2005-04-14 21:36:26) |
Under Sports Starters (in Word Problems)
Posted on 2005-04-11 (28 Comments) |
| Seventh by Old Original Oskar! (2005-04-12 23:19:56) |
| re: A thought by Old Original Oskar! (2005-04-12 23:18:25) |
Under Counting Sand (in Algorithms)
Posted on 2005-04-07 (9 Comments) |
| A variation by Old Original Oskar! (2005-04-12 23:27:08) |
| re: One way by Old Original Oskar! (2005-04-07 16:04:29) |
Under Black ants marching (in Riddles)
Posted on 2005-03-31 (23 Comments) |
| The ONE by Old Original Oskar! (2005-04-04 18:51:52) |
| 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) |
Under Desperately Difficult Derivative (in Calculus)
Posted on 2005-03-30 (10 Comments) |
| re(3): solution? by Old Original Oskar! (2005-04-04 18:54:39) |
| re: solution? by Old Original Oskar! (2005-03-30 20:50:05) |
Under Pegless Painting Plummets! (in General)
Posted on 2005-03-29 (20 Comments) |
| re: A solution with a wire... by Old Original Oskar! (2005-03-29 21:10:36) |
| re: Another solution... by Old Original Oskar! (2005-03-29 21:08:31) |
| re: One solution... by Old Original Oskar! (2005-03-29 21:05:35) |
Under Easy Money (in Just Math)
Posted on 2005-03-28 (4 Comments) |
| Solution by Old Original Oskar! (2005-03-28 15:13:53) |
Under Wonderful Water Works (in Weights and Scales)
Posted on 2005-03-19 (6 Comments) |
| Solutions don't work by Old Original Oskar! (2005-03-20 13:55:44) |
Under Make it go! (in Science)
Posted on 2005-03-18 (18 Comments) |
| First part by Old Original Oskar! (2005-03-18 19:59:26) |
Under Broken Hypotenuse (in Geometry)
Posted on 2005-02-28 (11 Comments) |
| A possible solution by Old Original Oskar! (2005-02-28 18:39:37) |
Under The poisonous wine (in Just Math)
Posted on 2005-02-26 (21 Comments) |
| Some statistics by Old Original Oskar! (2005-02-28 14:17:26) |
Under Lucky Numbers (in Numbers)
Posted on 2005-02-19 (7 Comments) |
| Believe it or not! by Old Original Oskar! (2005-02-19 16:30:48) |
Under Biased Coins (in Just Math)
Posted on 2005-02-17 (9 Comments) |
| Simple solution by Old Original Oskar! (2005-02-18 10:51:17) |
Under What song? (in Riddles)
Posted on 2005-02-16 (23 Comments) |
| Solution by Old Original Oskar! (2005-02-16 15:10:14) |
Under Sweet Sixteener (in Numbers)
Posted on 2005-02-03 (6 Comments) |
| re: Solution -- wrong by Old Original Oskar! (2005-02-03 18:12:16) |
| Answer by Old Original Oskar! (2005-02-03 15:03:24) |
Under Consecutive Primes (in Just Math)
Posted on 2005-01-24 (6 Comments) |
| Solution by Old Original Oskar! (2005-01-24 13:56:19) |
Under ‘,.pyf versus h.soav (in Cryptography)
Posted on 2005-01-21 (14 Comments) |
| re: Half a solution by Old Original Oskar! (2005-01-25 14:32:03) |
| Half a solution by Old Original Oskar! (2005-01-21 19:12:42) |
| Half a solution by Old Original Oskar! (2005-01-21 19:12:34) |
Under All integers (in Geometry)
Posted on 2005-01-17 (14 Comments) |
| Solution, by hand by Old Original Oskar! (2005-01-18 16:29:55) |
Under Square pairs (in Numbers)
Posted on 2005-01-09 (12 Comments) |
| Graph theory by Old Original Oskar! (2005-01-10 17:04:35) |
Under Another Simple Sequence (in Sequences)
Posted on 2004-12-22 (11 Comments) |
| Solution by Old Original Oskar! (2004-12-22 13:32:27) |
Under Formal Reasoning (in Logic)
Posted on 2004-12-15 (60 Comments) |
| Solution by Old Original Oskar! (2004-12-15 12:59:10) |
Under The sum of a sequence (in Just Math)
Posted on 2004-12-14 (10 Comments) |
| Solution by Old Original Oskar! (2004-12-14 17:49:25) |
Under 1 To 15 in a 3x5 Array (in Numbers)
Posted on 2004-12-09 (11 Comments) |
| A solution by Old Original Oskar! (2004-12-09 15:04:56) |
Under High Rollers (in Probability)
Posted on 2004-12-08 (6 Comments) |
| No Subject by Old Original Oskar! (2004-12-08 18:04:15) |
Under The Logician's Birthday (in Logic)
Posted on 2004-11-17 (75 Comments) |
| Simple Short Sideways Solution by Old Original Oskar! (2004-11-17 07:16:56) |
Under The Card Sorting Machine (in Algorithms)
Posted on 2004-11-12 (5 Comments) |
| A solution for CS people by Old Original Oskar! (2004-11-12 09:03:44) |
Under Letters missing from letters. (in Sequences)
Posted on 2004-11-11 (7 Comments) |
| Surely Short Solution by Old Original Oskar! (2004-11-13 07:34:48) |
Under Rameses' Pyramid (in General)
Posted on 2004-11-05 (15 Comments) |
| All Answers Are Awry? by Old Original Oskar! (2004-11-05 13:17:34) |
Under Who's the boss? (in Cryptography)
Posted on 2004-10-29 (8 Comments) |
| Solution (no spoiler) by Old Original Oskar! (2004-10-29 13:35:54) |
Under Triangular Coordinates (in Numbers)
Posted on 2004-10-26 (11 Comments) |
| Solution by Old Original Oskar! (2004-10-26 18:24:04) |
Under Select an Item (in Algorithms)
Posted on 2004-10-22 (13 Comments) |
| Very Simple by Old Original Oskar! (2004-10-22 16:01:20) |
Under Square Perfection (in Shapes)
Posted on 2004-10-16 (5 Comments) |
| Big hint and spoiler by Old Original Oskar! (2004-10-16 16:22:35) |
Under Equiangular Hexagons (in Shapes)
Posted on 2004-10-15 (9 Comments) |
| Second part by Old Original Oskar! (2004-10-15 14:03:53) |
Under Your spelling is very bad (in Cryptography)
Posted on 2004-10-07 (16 Comments) |
| Answer by Old Original Oskar! (2004-10-07 08:17:09) |
Under Sequencing problems (in Numbers)
Posted on 2004-10-01 (10 Comments) |
| Answer by Old Original Oskar! (2004-10-01 11:17:41) |
Under Merit Review (in Sequences)
Posted on 2004-09-28 (6 Comments) |
| Answer by Old Original Oskar! (2004-09-28 11:52:33) |
Under Fill in the blanks (2) (in General)
Posted on 2004-09-28 (14 Comments) |
| Solution by Old Original Oskar! (2004-09-28 08:49:30) |
Under At the Olympic Games (6) (in Logic)
Posted on 2004-09-27 (48 Comments) |
| Answer (fully explained) by Old Original Oskar! (2004-09-27 12:15:58) |
Under Spot the Difference (in Sequences)
Posted on 2004-09-26 (9 Comments) |
| Answer? by Old Original Oskar! (2004-09-26 08:17:13) |
Under Rare Rotative Relationship! (in Numbers)
Posted on 2004-09-23 (13 Comments) |
| re: Another idea by Old Original Oskar! (2004-09-27 12:20:30) |
Under Squaring shapes: (in Geometry)
Posted on 2004-09-22 (10 Comments) |
| re(2): Solution by Old Original Oskar! (2004-09-22 18:04:33) |
| Solution by Old Original Oskar! (2004-09-22 13:33:46) |
Under Fill in the blanks. (in General)
Posted on 2004-09-22 (15 Comments) |
| Answer by Old Original Oskar! (2004-09-22 08:34:34) |
Under More Archery Practice (in Numbers)
Posted on 2004-09-21 (15 Comments) |
| Answer by Old Original Oskar! (2004-09-21 12:12:10) |
Under Get one half by squaring (in Just Math)
Posted on 2004-09-20 (32 Comments) |
| Shorter solutions? by Old Original Oskar! (2004-09-22 05:52:24) |
Under Differential Cryptography (in Cryptography)
Posted on 2004-09-19 (8 Comments) |
| Answer by Old Original Oskar! (2004-09-19 12:52:34) |
Under Hidden Elements (in Science)
Posted on 2004-09-17 (16 Comments) |
| Answer by Old Original Oskar! (2004-09-17 09:14:03) |
Under Word relations (in Word Problems)
Posted on 2004-09-14 (8 Comments) |
| Answer by Old Original Oskar! (2004-09-14 08:11:06) |
Under Hawks and Doves (in Probability)
Posted on 2004-09-13 (22 Comments) |
| Final part by Old Original Oskar! (2004-09-13 09:42:05) |
Under Gonna party like it's 1999 (in Just Math)
Posted on 2004-09-12 (8 Comments) |
| Answer by Old Original Oskar! (2004-09-12 10:48:50) |
Under Harder Russian Roulette (in Probability)
Posted on 2004-09-11 (21 Comments) |
| Answers by Old Original Oskar! (2004-09-11 21:41:48) |
Under Nine kids (in Numbers)
Posted on 2004-09-09 (22 Comments) |
| re: Brute force solutions (spoilers) by Old Original Oskar! (2004-09-09 10:14:51) |
| Duplicate ages? by Old Original Oskar! (2004-09-09 10:13:35) |
Under Another last digit (in Numbers)
Posted on 2004-09-07 (10 Comments) |
| Simpler solution by Old Original Oskar! (2004-09-07 07:01:06) |
Under Four-letter insert? (in Word Problems)
Posted on 2004-09-06 (11 Comments) |
| re: All seven by Old Original Oskar! (2004-09-06 09:42:38) |
Under Ten Words (3) (in Word Problems)
Posted on 2004-09-05 (14 Comments) |
| No Subject by Old Original Oskar! (2004-09-06 09:51:47) |
Under Missing digits (in Just Math)
Posted on 2004-09-04 (9 Comments) |
| Answer by Old Original Oskar! (2004-09-04 18:47:50) |
Under Measure that angle II (in Geometry)
Posted on 2004-09-01 (18 Comments) |
| Simple by Old Original Oskar! (2004-09-01 09:57:08) |
Under Prime Cross Letters (in Numbers)
Posted on 2004-08-24 (6 Comments) |
| (Almost) by hand by Old Original Oskar! (2004-08-24 08:26:21) |
Under Sins of the Gambler (in Probability)
Posted on 2004-08-23 (6 Comments) |
| Classic martingale by Old Original Oskar! (2004-08-23 09:12:34) |
Under Provably unprovable? (in Paradoxes)
Posted on 2004-08-22 (36 Comments) |
| Just thinking by Old Original Oskar! (2004-08-22 11:40:41) |
Under Summing inverses (in Calculus)
Posted on 2004-08-19 (18 Comments) |
| A short solution by Old Original Oskar! (2004-08-19 11:28:19) |
| re: Counterintuitive by Old Original Oskar! (2004-08-19 11:25:30) |
Under Friday the 13th (in General)
Posted on 2004-08-13 (13 Comments) |
| re: umm... by Old Original Oskar! (2004-08-13 09:57:05) |
Under Unknown Digits (in Numbers)
Posted on 2004-08-11 (9 Comments) |
| My reasoning by Old Original Oskar! (2004-08-11 13:40:31) |
| By hand by Old Original Oskar! (2004-08-11 13:29:05) |
Under Ten Words (2) (in Word Problems)
Posted on 2004-08-10 (14 Comments) |
| Solution, with variants by Old Original Oskar! (2004-08-10 09:57:48) |
Under Converging Circumference (in General)
Posted on 2004-08-09 (5 Comments) |
| Web solution by Old Original Oskar! (2004-08-09 14:21:32) |
Under A Cute Dissection (in Geometry)
Posted on 2004-08-06 (6 Comments) |
| Answer in seven by Old Original Oskar! (2004-08-06 13:59:52) |
Under Sharing a Plot (in Geometry)
Posted on 2004-08-05 (4 Comments) |
| Quick by Old Original Oskar! (2004-08-05 08:24:56) |
Under tic-tac-toe (in Probability)
Posted on 2004-07-30 (14 Comments) |
| Answer by Old Original Oskar! (2004-07-30 13:01:15) |
Under Three Circles (in Geometry)
Posted on 2004-07-28 (9 Comments) |
| Soddy's Circles by Old Original Oskar! (2004-07-28 12:29:07) |
Under funny numbers (in Numbers)
Posted on 2004-07-28 (19 Comments) |
| Answer by Old Original Oskar! (2004-07-28 08:22:36) |
Under Perfect square? (in Numbers)
Posted on 2004-07-23 (12 Comments) |
| Short solution by Old Original Oskar! (2004-07-23 13:40:31) |
Under Different Sums (in Numbers)
Posted on 2004-07-22 (17 Comments) |
| re(2): Curious second differences by Old Original Oskar! (2004-07-22 13:04:49) |
Under Who plays next? (in Games)
Posted on 2004-07-19 (15 Comments) |
| Liar ! by Old Original Oskar! (2004-07-19 08:16:33) |
Under Subsetting a set (in Numbers)
Posted on 2004-06-29 (9 Comments) |
| Second part by Old Original Oskar! (2004-06-29 13:59:41) |
Under Root Route (in Algorithms)
Posted on 2004-06-29 (7 Comments) |
| Three iterations by Old Original Oskar! (2004-06-29 08:25:56) |
Under Magic-in-more-than-one-way Square (in Numbers)
Posted on 2004-06-24 (12 Comments) |
| Yet another (different) solution by Old Original Oskar! (2004-06-24 14:12:15) |
Under Coin tossing (in Probability)
Posted on 2004-06-11 (26 Comments) |
| re(2): Markov chain solution - 2nd part by Old Original Oskar! (2004-06-13 10:24:11) |
| Markov chain solution - 2nd part by Old Original Oskar! (2004-06-12 23:09:11) |
| Markov chain solution - 1st part by Old Original Oskar! (2004-06-12 23:04:29) |
| Markov chain solution by Old Original Oskar! (2004-06-12 22:55:14) |
| re: solution by Old Original Oskar! (2004-06-12 00:04:51) |
Under Random Number Generator (in Algorithms)
Posted on 2004-06-08 (27 Comments) |
| re: This little program doesn't do the trick... by Old Original Oskar! (2004-06-08 15:45:42) |
Under The Knavy (in Liars and Knights)
Posted on 2004-05-27 (22 Comments) |
| re: Solution by Old Original Oskar! (2004-05-27 08:12:20) |
Under Symmetrical words (in Word Problems)
Posted on 2004-05-21 (18 Comments) |
| re(3): Who needs a Computer search ????? by Old Original Oskar! (2004-05-21 12:45:53) |
Under A Coin Game (in Probability)
Posted on 2004-05-20 (12 Comments) |
| Answer by Old Original Oskar! (2004-05-20 14:17:57) |
Under Pythagorean Plus One (in Numbers)
Posted on 2004-05-17 (20 Comments) |
| Solution?? by Old Original Oskar! (2004-05-17 08:50:36) |
Under Ping Pong Poise (in General)
Posted on 2004-05-13 (16 Comments) |
| Dumb solution? by Old Original Oskar! (2004-05-13 07:52:20) |
Under What am I? (in Riddles)
Posted on 2004-05-10 (51 Comments) |
| Solution by Old Original Oskar! (2004-05-10 10:03:01) |
Under kst (in Tricks)
Posted on 2004-05-03 (14 Comments) |
| Solution by Old Original Oskar! (2004-05-03 10:11:19) |
Under Walking the Roads (in Logic)
Posted on 2004-05-01 (6 Comments) |
| Solution by Old Original Oskar! (2004-05-01 18:09:41) |
Under Pythagorean Pyramid (in Geometry)
Posted on 2004-04-26 (15 Comments) |
| re: Solution by Old Original Oskar! (2004-04-26 17:46:50) |
| Geometrically by Old Original Oskar! (2004-04-26 10:27:19) |
| Is this true? by Old Original Oskar! (2004-04-26 09:28:51) |
Under Liar, Liar, Pants on Fire. (in Liars and Knights)
Posted on 2004-04-21 (11 Comments) |
| Methodically by Old Original Oskar! (2004-04-21 08:33:30) |
Under Rotating an array (in Algorithms)
Posted on 2004-04-19 (26 Comments) |
| A better way, from the beginning by Old Original Oskar! (2004-04-19 20:56:04) |
| A possible way by Old Original Oskar! (2004-04-19 17:51:17) |
Under Summing (in Just Math)
Posted on 2004-04-16 (5 Comments) |
| The sum by Old Original Oskar! (2004-04-16 13:46:40) |
Under Shortest Long Number (in Paradoxes)
Posted on 2004-04-15 (49 Comments) |
| Berry Paradox by Old Original Oskar! (2004-04-15 14:47:27) |
Under The many sages (in Logic)
Posted on 2004-04-13 (25 Comments) |
| Inductively by Old Original Oskar! (2004-04-13 10:47:56) |
Under 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) |
Under Disjointification (in Just Math)
Posted on 2004-04-04 (12 Comments) |
| Missing part of the proof by Old Original Oskar! (2004-04-13 10:58:49) |
Under An inconsistent climber (in General)
Posted on 2002-04-25 (10 Comments) |
| Comment by Old Original Oskar! (2005-02-22 11:02:28) |
