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Search results for problems posted by pcbouhid :
Difficulty: 2 of 5Connecting dots (in General) Rating: 4.00
Posted on 2009-07-20 by pcbouhid (Solution Posted, 0 Comments)
Difficulty: 2 of 5Just one expression (in Just Math) Rating: 4.00
Posted on 2009-07-07 by pcbouhid (Solution Posted, 1 Comments)
Difficulty: 2 of 5How much time will you spend? (in Tricks)
Posted on 2009-06-29 by pcbouhid (Solution Posted, 3 Comments)
Difficulty: 3 of 5A personal lotto game (in Probability)
Posted on 2009-06-12 by pcbouhid (Solution Posted, 4 Comments)
Difficulty: 2 of 5Maximizing chess moves (in Games)
Posted on 2009-06-11 by pcbouhid (Solution Posted, 3 Comments)
Difficulty: 2 of 5Wonderful problem (in Cryptography) Rating: 2.00
Posted on 2009-06-07 by pcbouhid (Solution Posted, 7 Comments)
Difficulty: 2 of 5Dimensions of a box (in Calculus)
Posted on 2009-05-15 by pcbouhid (Solution Posted, 3 Comments)
Difficulty: 3 of 5Three guys, three numbers (in Logic) Rating: 4.00
Posted on 2009-05-01 by pcbouhid (Solution Posted, 12 Comments)
Difficulty: 2 of 5Who said this? (in Cryptography) Rating: 2.00
Posted on 2009-04-19 by pcbouhid (Solution Posted, 5 Comments)
Difficulty: 3 of 5Five women vacations (in Logic) Rating: 4.00
Posted on 2009-04-11 by pcbouhid (Solution Posted, 2 Comments)
Difficulty: 4 of 5Five railway employees (in Logic) Rating: 3.00
Posted on 2009-04-02 by pcbouhid (Solution Posted, 4 Comments)
Difficulty: 2 of 5Making integer an expression (in Just Math) Rating: 3.00
Posted on 2009-03-20 by pcbouhid (Solution Posted, 12 Comments)
Difficulty: 2 of 5Sequence with only 3 numbers (in Just Math) Rating: 2.00
Posted on 2009-03-07 by pcbouhid (Solution Posted, 11 Comments)
Difficulty: 1 of 5A chess problem for beginners (in Games)
Posted on 2009-03-04 by pcbouhid (Solution Posted, 10 Comments)
Difficulty: 2 of 5Two players, two pots (in Games) Rating: 2.00
Posted on 2009-02-21 by pcbouhid (Solution Posted, 2 Comments)
Difficulty: 2 of 5Another case of divisibility (in Just Math)
Posted on 2009-02-15 by pcbouhid (Solution Posted, 3 Comments)
Difficulty: 3 of 5Happy 2009 to you all (in Just Math)
Posted on 2009-02-08 by pcbouhid (Solution Posted, 3 Comments)
Difficulty: 2 of 5Attack and defense (in Probability) Rating: 5.00
Posted on 2009-02-06 by pcbouhid (Solution Posted, 2 Comments)
Difficulty: 2 of 5The 8 cards (in Logic) Rating: 4.50
Posted on 2009-01-31 by pcbouhid (Solution Posted, 9 Comments)
Difficulty: 2 of 5X-crabble (in Word Problems) Rating: 4.00
Posted on 2009-01-27 by pcbouhid (Solution Posted, 1 Comments)
Difficulty: 2 of 5The hour-glass (in Just Math) Rating: 2.50
Posted on 2009-01-20 by pcbouhid (Solution Posted, 3 Comments)
Difficulty: 2 of 5Digits 251 in sequence (in Just Math)
Posted on 2009-01-05 by pcbouhid (Solution Posted, 5 Comments)
Difficulty: 2 of 52000 cards (in General)
Posted on 2009-01-04 by pcbouhid (Solution Posted, 9 Comments)
Difficulty: 2 of 5The box (in Just Math)
Posted on 2009-01-02 by pcbouhid (Solution Posted, 7 Comments)
Difficulty: 2 of 5A great time waster (in Just Math)
Posted on 2008-12-29 by pcbouhid (Solution Posted, 3 Comments)
Difficulty: 2 of 5The last locker (in Just Math)
Posted on 2008-12-20 by pcbouhid (Solution Posted, 4 Comments)
Difficulty: 3 of 5Power x mod x (in Just Math) Rating: 4.00
Posted on 2008-12-18 by pcbouhid (Solution Posted, 5 Comments)
Difficulty: 3 of 512 on foreheads (in Logic) Rating: 4.00
Posted on 2008-12-17 by pcbouhid (Solution Posted, 2 Comments)
Difficulty: 2 of 5Rationalize the denominator (in Just Math)
Posted on 2008-12-14 by pcbouhid (Solution Posted, 3 Comments)
Difficulty: 2 of 5Four special natural numbers (in Just Math)
Posted on 2008-12-11 by pcbouhid (Solution Posted, 8 Comments)
Difficulty: 2 of 5Constructing a right triangle (in Geometry)
Posted on 2008-12-07 by pcbouhid (Solution Posted, 6 Comments)
Difficulty: 3 of 5Minimum time (in Calculus) Rating: 4.33
Posted on 2008-12-04 by pcbouhid (Solution Posted, 5 Comments)
Difficulty: 2 of 5Just ones and nines (in Numbers)
Posted on 2008-12-03 by pcbouhid (Solution Posted, 2 Comments)
Difficulty: 2 of 5The 90 turkeys (in Just Math)
Posted on 2008-11-27 by pcbouhid (Solution Posted, 13 Comments)
Difficulty: 2 of 5Singular squares (in Numbers)
Posted on 2008-11-23 by pcbouhid (Solution Posted, 3 Comments)
Difficulty: 2 of 5Arranging numbers in a row (in Numbers) Rating: 2.33
Posted on 2008-11-20 by pcbouhid (Solution Posted, 12 Comments)
Difficulty: 2 of 5Flaps, Fleps, Flips, Flops, and Flups (in Logic) Rating: 1.50
Posted on 2008-11-16 by pcbouhid (Solution Posted, 4 Comments)
Difficulty: 2 of 5Digital power (in Just Math) Rating: 5.00
Posted on 2008-11-15 by pcbouhid (Solution Posted, 6 Comments)
Difficulty: 2 of 5Building a ruler (in General)
Posted on 2008-11-14 by pcbouhid (Solution Posted, 10 Comments)
Difficulty: 3 of 5The farmer and the pig (in Calculus)
Posted on 2008-11-13 by pcbouhid (Solution Posted, 5 Comments)
Difficulty: 2 of 5Balls in an urn (in Probability) Rating: 3.50
Posted on 2008-11-11 by pcbouhid (Solution Posted, 4 Comments)
Difficulty: 3 of 5A remarkable multiplication (in Just Math) Rating: 5.00
Posted on 2008-11-09 by pcbouhid (Solution Posted, 3 Comments)
Difficulty: 2 of 5The 3 containers (in Just Math) Rating: 3.50
Posted on 2008-11-05 by pcbouhid (Solution Posted, 5 Comments)
Difficulty: 2 of 5All divisible by 7 (in Just Math) Rating: 3.50
Posted on 2008-11-04 by pcbouhid (Solution Posted, 8 Comments)
Difficulty: 2 of 5Singular pair of numbers (in Numbers)
Posted on 2008-11-03 by pcbouhid (Solution Posted, 3 Comments)
Difficulty: 2 of 5f(1998) (in Just Math) Rating: 3.00
Posted on 2008-10-31 by pcbouhid (Solution Posted, 4 Comments)
Difficulty: 2 of 5The slug and the snail (in Just Math)
Posted on 2008-10-27 by pcbouhid (Solution Posted, 7 Comments)
Difficulty: 2 of 5True coins, fake coins (in Weights and Scales) Rating: 5.00
Posted on 2008-10-23 by pcbouhid (Solution Posted, 9 Comments)
Difficulty: 2 of 5Cows, horses and dogs (in Just Math)
Posted on 2008-10-20 by pcbouhid (Solution Posted, 12 Comments)
Difficulty: 2 of 5Top four people (in Logic) Rating: 2.50
Posted on 2008-10-18 by pcbouhid (Solution Posted, 3 Comments)
Difficulty: 2 of 5Always equilateral (in Geometry)
Posted on 2008-10-14 by pcbouhid (Solution Posted, 5 Comments)
Difficulty: 2 of 59 balls, 10 straight lines (in General) Rating: 2.00
Posted on 2008-10-12 by pcbouhid (Solution Posted, 21 Comments)
Difficulty: 2 of 5Crazy math? (in General) Rating: 2.50
Posted on 2008-10-10 by pcbouhid (Solution Posted, 5 Comments)
Difficulty: 2 of 5Who committed the murder? (in Logic) Rating: 3.00
Posted on 2008-10-08 by pcbouhid (Solution Posted, 5 Comments)
Difficulty: 2 of 5Exactly 20 games (in Just Math) Rating: 3.20
Posted on 2008-10-01 by pcbouhid (Solution Posted, 5 Comments)
Difficulty: 3 of 5Primes in arithmetic progression (in Just Math)
Posted on 2008-09-30 by pcbouhid (Solution Posted, 9 Comments)
Difficulty: 2 of 5A long division (in Just Math) Rating: 3.00
Posted on 2008-09-29 by pcbouhid (Solution Posted, 2 Comments)
Difficulty: 1 of 525 balls (in Probability)
Posted on 2008-09-25 by pcbouhid (Solution Posted, 7 Comments)
Difficulty: 2 of 5Numerical path (in Logic) Rating: 2.50
Posted on 2008-09-23 by pcbouhid (Solution Posted, 11 Comments)
Difficulty: 2 of 5Pairs of primes (in Numbers) Rating: 5.00
Posted on 2008-09-21 by pcbouhid (Solution Posted, 2 Comments)
Difficulty: 2 of 5Trigonometric relationship (in Just Math)
Posted on 2008-09-19 by pcbouhid (Solution Posted, 2 Comments)
Difficulty: 2 of 5ABC = A! + B! + C! (in Just Math)
Posted on 2008-09-13 by pcbouhid (Solution Posted, 6 Comments)
Difficulty: 2 of 5The mouse and the cheese (in Probability) Rating: 3.00
Posted on 2008-09-11 by pcbouhid (Solution Posted, 4 Comments)
Difficulty: 2 of 5Always multiple (in Just Math) Rating: 4.00
Posted on 2008-09-07 by pcbouhid (Solution Posted, 1 Comments)
Difficulty: 2 of 5Students in a tournament (in Just Math) Rating: 2.33
Posted on 2008-09-05 by pcbouhid (Solution Posted, 7 Comments)
Difficulty: 2 of 5Doubles on reverse (in Just Math) Rating: 3.00
Posted on 2008-09-02 by pcbouhid (Solution Posted, 3 Comments)
Difficulty: 3 of 5Prime suspect (in Calculus)
Posted on 2008-08-31 by pcbouhid (Solution Posted, 3 Comments)
Difficulty: 2 of 5Catching your enemy (in Logic) Rating: 2.33
Posted on 2008-08-25 by pcbouhid (Solution Posted, 20 Comments)
Difficulty: 2 of 5Trisecting an angle (in Geometry) Rating: 2.00
Posted on 2008-08-24 by pcbouhid (Solution Posted, 7 Comments)
Difficulty: 3 of 5The missing letter (in Sequences) Rating: 3.50
Posted on 2008-08-22 by pcbouhid (Solution Posted, 6 Comments)
Difficulty: 2 of 5No repeated numbers (in Logic) Rating: 4.00
Posted on 2008-08-20 by pcbouhid (Solution Posted, 20 Comments)
Difficulty: 2 of 51111 (in Just Math)
Posted on 2008-08-18 by pcbouhid (Solution Posted, 3 Comments)
Difficulty: 2 of 5A domino puzzle (in Logic) Rating: 3.00
Posted on 2008-08-15 by pcbouhid (Solution Posted, 3 Comments)
Difficulty: 2 of 5Evaluate this remainder (in Just Math) Rating: 4.00
Posted on 2008-08-13 by pcbouhid (Solution Posted, 6 Comments)
Difficulty: 3 of 5Password in an ATM (in Probability) Rating: 3.00
Posted on 2008-08-11 by pcbouhid (Solution Posted, 2 Comments)
Difficulty: 2 of 5Where is the arsenic? (in Logic) Rating: 1.50
Posted on 2008-08-10 by pcbouhid (Solution Posted, 6 Comments)
Difficulty: 2 of 5The smallest sum (in Logic) Rating: 3.00
Posted on 2008-08-08 by pcbouhid (Solution Posted, 3 Comments)
Difficulty: 2 of 5Father and son (in Just Math)
Posted on 2008-08-04 by pcbouhid (Solution Posted, 10 Comments)
Difficulty: 2 of 5Captain Smith and his legacy (in Just Math)
Posted on 2008-08-01 by pcbouhid (Solution Posted, 1 Comments)
Difficulty: 3 of 5Minimum area of a triangle (in Just Math) Rating: 2.00
Posted on 2008-07-30 by pcbouhid (Solution Posted, 10 Comments)
Difficulty: 1 of 5Me, my grandfather!! (in General)
Posted on 2008-07-29 by pcbouhid (Solution Posted, 7 Comments)
Difficulty: 2 of 5Holes in a magic square (in Just Math) Rating: 3.00
Posted on 2008-07-26 by pcbouhid (Solution Posted, 8 Comments)
Difficulty: 2 of 5Identify the cities (in General) Rating: 4.00
Posted on 2008-07-25 by pcbouhid (Solution Posted, 9 Comments)
Difficulty: 2 of 5King to F1 (in Games)
Posted on 2008-07-23 by pcbouhid (Solution Posted, 7 Comments)
Difficulty: 3 of 5A system of modular equations (in Just Math)
Posted on 2008-07-20 by pcbouhid (Solution Posted, 8 Comments)
Difficulty: 3 of 5Add 1, get a square (in Just Math)
Posted on 2008-07-17 by pcbouhid (Solution Posted, 3 Comments)
Difficulty: 2 of 5Roulette anyone? (in Just Math) Rating: 4.00
Posted on 2008-07-13 by pcbouhid (Solution Posted, 3 Comments)
Difficulty: 2 of 5The farmer and the sheep (in Just Math) Rating: 4.50
Posted on 2008-07-11 by pcbouhid (Solution Posted, 5 Comments)
Difficulty: 3 of 5SOD (in Just Math) Rating: 4.00
Posted on 2008-07-09 by pcbouhid (Solution Posted, 2 Comments)
Difficulty: 2 of 5The five 3´s (in Just Math) Rating: 4.50
Posted on 2008-07-07 by pcbouhid (Solution Posted, 35 Comments)
Difficulty: 2 of 5A persistent divisibility (in Just Math) Rating: 2.50
Posted on 2008-07-03 by pcbouhid (Solution Posted, 2 Comments)
Difficulty: 2 of 5Which is larger? (in Just Math) Rating: 4.00
Posted on 2008-06-30 by pcbouhid (Solution Posted, 7 Comments)
Difficulty: 1 of 5Two English words (in Word Problems) Rating: 3.00
Posted on 2008-06-27 by pcbouhid (Solution Posted, 8 Comments)
Difficulty: 2 of 5Basic addition (in Just Math) Rating: 3.00
Posted on 2008-06-25 by pcbouhid (Solution Posted, 2 Comments)
Difficulty: 2 of 5A billiard challenge (in Geometry) Rating: 3.50
Posted on 2008-06-23 by pcbouhid (Solution Posted, 4 Comments)
Difficulty: 3 of 5The girls, the boxes and the balls (in Logic) Rating: 4.33
Posted on 2008-06-19 by pcbouhid (Solution Posted, 9 Comments)
Difficulty: 2 of 5Water at 76º C (in Weights and Scales) Rating: 4.00
Posted on 2008-06-17 by pcbouhid (Solution Posted, 5 Comments)
Difficulty: 3 of 5The horse and the grass field (in Calculus) Rating: 4.00
Posted on 2008-06-15 by pcbouhid (Solution Posted, 3 Comments)
Difficulty: 3 of 5The missing piece (chess) (in Games) Rating: 4.00
Posted on 2008-06-12 by pcbouhid (Solution Posted, 15 Comments)
Difficulty: 2 of 5Four cars (in Just Math) Rating: 4.25
Posted on 2008-06-09 by pcbouhid (Solution Posted, 6 Comments)
Difficulty: 3 of 5Evaluate this infinite product (in Calculus) Rating: 5.00
Posted on 2008-06-05 by pcbouhid (Solution Posted, 5 Comments)
Difficulty: 2 of 5An equation with consecutive primes (in Just Math) Rating: 3.00
Posted on 2006-01-16 by pcbouhid (Solution Posted, 23 Comments)
Difficulty: 2 of 5Placing 20 pieces (in General) Rating: 2.00
Posted on 2006-01-14 by pcbouhid (Solution Posted, 4 Comments)
Difficulty: 2 of 5Crossed sums (in Just Math) Rating: 3.00
Posted on 2006-01-12 by pcbouhid (Solution Posted, 12 Comments)
Difficulty: 2 of 5Identify the chess pieces (in Games) Rating: 3.00
Posted on 2006-01-09 by pcbouhid (Solution Posted, 15 Comments)
Difficulty: 2 of 5Amazing news (in Cryptography) Rating: 3.67
Posted on 2006-01-07 by pcbouhid (Solution Posted, 4 Comments)
Difficulty: 2 of 5Two spheres in a tank (in Science) Rating: 3.50
Posted on 2006-01-05 by pcbouhid (Solution Posted, 11 Comments)
Difficulty: 2 of 5A rational cryptarithm (in Just Math) Rating: 2.67
Posted on 2005-12-29 by pcbouhid (Solution Posted, 17 Comments)
Difficulty: 2 of 5All the months of the year (in General) Rating: 4.00
Posted on 2005-12-27 by pcbouhid (Solution Posted, 4 Comments)
Difficulty: 3 of 5No trigonometry, no algebra (in Geometry) Rating: 3.00
Posted on 2005-12-23 by pcbouhid (Solution Posted, 10 Comments)
Difficulty: 4 of 5Evaluate this sum (in Just Math) Rating: 4.33
Posted on 2005-12-21 by pcbouhid (Solution Posted, 14 Comments)
Difficulty: 2 of 5The hired man (in Logic) Rating: 3.50
Posted on 2005-12-19 by pcbouhid (Solution Posted, 20 Comments)
Difficulty: 3 of 5Three women, three numbers (in Logic) Rating: 3.38
Posted on 2005-12-15 by pcbouhid (Solution Posted, 27 Comments)
Difficulty: 2 of 5All rationals? (in Geometry) Rating: 3.00
Posted on 2005-12-13 by pcbouhid (Solution Posted, 3 Comments)
Difficulty: 2 of 5Nine square pieces (in General) Rating: 3.00
Posted on 2005-12-11 by pcbouhid (Solution Posted, 9 Comments)
Difficulty: 2 of 5The judge´s wife (in Logic) Rating: 4.17
Posted on 2005-12-08 by pcbouhid (Solution Posted, 10 Comments)
Difficulty: 2 of 5Dicemath (in Just Math) Rating: 4.00
Posted on 2005-12-07 by pcbouhid (Solution Posted, 3 Comments)
Difficulty: 1 of 5How can this be? (in Riddles) Rating: 4.00
Posted on 2005-12-04 by pcbouhid (Solution Posted, 5 Comments)
Difficulty: 2 of 5Please, Mr. Postman (in Cryptography) Rating: 2.75
Posted on 2005-12-02 by pcbouhid (Solution Posted, 17 Comments)
Difficulty: 2 of 5Forty-two pieces (in Logic) Rating: 3.14
Posted on 2005-11-30 by pcbouhid (Solution Posted, 11 Comments)
Difficulty: 3 of 5The prisoners and the beans (in Logic) Rating: 3.80
Posted on 2005-11-27 by pcbouhid (Solution Posted, 38 Comments)
Difficulty: 2 of 5Reproduce this drawing (in General) Rating: 3.50
Posted on 2005-11-25 by pcbouhid (Solution Posted, 33 Comments)
Difficulty: 2 of 5Anagramming sentences (in Word Problems) Rating: 4.14
Posted on 2005-11-20 by pcbouhid (Solution Posted, 5 Comments)
Difficulty: 2 of 5Only 6´s and 9´s (in General) Rating: 3.40
Posted on 2005-11-14 by pcbouhid (Solution Posted, 7 Comments)
Difficulty: 2 of 5Covering a chessboard (in Logic) Rating: 3.67
Posted on 2005-11-12 by pcbouhid (Solution Posted, 15 Comments)
Difficulty: 3 of 5Find these constants I (in Just Math) Rating: 2.80
Posted on 2005-11-10 by pcbouhid (Solution Posted, 10 Comments)
Difficulty: 2 of 5Remarkable man, remarkable truth (in General) Rating: 4.33
Posted on 2005-11-09 by pcbouhid (Solution Posted, 12 Comments)
Difficulty: 3 of 5The least square (in Just Math) Rating: 4.00
Posted on 2005-11-05 by pcbouhid (Solution Posted, 11 Comments)
Difficulty: 2 of 5Once a liar, always a liar (in Logic) Rating: 2.93
Posted on 2005-11-02 by pcbouhid (Solution Posted, 26 Comments)
Difficulty: 2 of 5What´s your score II? (in General) Rating: 4.00
Posted on 2005-10-31 by pcbouhid (Solution Posted, 26 Comments)
Difficulty: 2 of 5An infinite chessboard (in Just Math) Rating: 3.43
Posted on 2005-10-28 by pcbouhid (Solution Posted, 26 Comments)
Difficulty: 2 of 5Pieces in the box (in General) Rating: 4.33
Posted on 2005-10-26 by pcbouhid (Solution Posted, 15 Comments)
Difficulty: 2 of 5Calm down, people! (in Logic) Rating: 3.33
Posted on 2005-10-25 by pcbouhid (Solution Posted, 44 Comments)
Difficulty: 2 of 5The omitted age (in Logic) Rating: 3.00
Posted on 2005-10-20 by pcbouhid (Solution Posted, 21 Comments)
Difficulty: 2 of 5Words on the rocks, please (in Word Problems) Rating: 4.00
Posted on 2005-10-17 by pcbouhid (Solution Posted, 5 Comments)
Difficulty: 2 of 5Nine cards (in Logic) Rating: 2.75
Posted on 2005-10-14 by pcbouhid (Solution Posted, 30 Comments)
Difficulty: 2 of 5A pyramid of words (in Word Problems) Rating: 4.00
Posted on 2005-10-12 by pcbouhid (Solution Posted, 4 Comments)
Difficulty: 3 of 52003 - An odyssey with pi and e (in Just Math) Rating: 3.11
Posted on 2005-10-09 by pcbouhid (Solution Posted, 9 Comments)
Difficulty: 3 of 5String of letters (in Logic) Rating: 4.00
Posted on 2005-10-06 by pcbouhid (Solution Posted, 15 Comments)
Difficulty: 2 of 5Twelve what?! (in General) Rating: 2.33
Posted on 2005-10-04 by pcbouhid (Solution Posted, 22 Comments)
Difficulty: 2 of 5Make a hole (in General) Rating: 3.40
Posted on 2005-10-02 by pcbouhid (Solution Posted, 6 Comments)
Difficulty: 3 of 5Crossing the board (in General) Rating: 3.80
Posted on 2005-09-30 by pcbouhid (Solution Posted, 10 Comments)
Difficulty: 1 of 5Leave a different letter (in Tricks) Rating: 3.67
Posted on 2005-09-28 by pcbouhid (Solution Posted, 19 Comments)
Difficulty: 2 of 5Closest to pi (in Just Math) Rating: 3.00
Posted on 2005-09-25 by pcbouhid (Solution Posted, 25 Comments)
Difficulty: 3 of 5Star Trek (in General) Rating: 3.60
Posted on 2005-09-23 by pcbouhid (Solution Posted, 27 Comments)
Difficulty: 2 of 5Star of David (in General) Rating: 4.00
Posted on 2005-09-20 by pcbouhid (Solution Posted, 10 Comments)
Difficulty: 2 of 5The reversed numbers (in Just Math) Rating: 4.50
Posted on 2005-09-16 by pcbouhid (Solution Posted, 7 Comments)
Difficulty: 2 of 5Six ships (in Logic) Rating: 4.00
Posted on 2005-09-13 by pcbouhid (Solution Posted, 11 Comments)
Difficulty: 1 of 5A tribute to Clarice (in General) Rating: 4.10
Posted on 2005-09-08 by pcbouhid (Solution Posted, 21 Comments)
Difficulty: 3 of 5Five red discs (in Logic) Rating: 4.08
Posted on 2005-09-07 by pcbouhid (Solution Posted, 26 Comments)
Difficulty: 2 of 5A string of primes (in Numbers) Rating: 2.00
Posted on 2005-09-01 by pcbouhid (Solution Posted, 4 Comments)
Difficulty: 2 of 5Celsius x Fahrenheit (in Just Math) Rating: 3.33
Posted on 2005-08-31 by pcbouhid (Solution Posted, 9 Comments)
Difficulty: 2 of 5Reconstruct this chess game (in Games) Rating: 3.50
Posted on 2005-08-29 by pcbouhid (Solution Posted, 8 Comments)
Difficulty: 2 of 5What´s the trick? (in Just Math) Rating: 2.80
Posted on 2005-08-25 by pcbouhid (Solution Posted, 14 Comments)
Difficulty: 2 of 5Digital sum (in Just Math) Rating: 4.25
Posted on 2005-08-20 by pcbouhid (Solution Posted, 7 Comments)
Difficulty: 2 of 5The 5 jugs (in General) Rating: 2.25
Posted on 2005-08-18 by pcbouhid (Solution Posted, 36 Comments)
Difficulty: 2 of 5Connecting dots (in General) Rating: 1.50
Posted on 2005-08-14 by pcbouhid (Solution Posted, 9 Comments)
Difficulty: 2 of 5The murderer in the Hotel (in Logic) Rating: 3.44
Posted on 2005-08-11 by pcbouhid (Solution Posted, 59 Comments)
Difficulty: 3 of 5The failing LEDs (in Just Math) Rating: 4.33
Posted on 2005-08-09 by pcbouhid (Solution Posted, 11 Comments)
Difficulty: 3 of 5Where is the White King? (in Games) Rating: 3.29
Posted on 2005-08-05 by pcbouhid (Solution Posted, 21 Comments)
Difficulty: 2 of 5The Remaining Digits (in Logic) Rating: 4.33
Posted on 2005-08-04 by pcbouhid (Solution Posted, 20 Comments)
Difficulty: 2 of 5Complete the crossword (in Word Problems)
Posted on 2005-08-01 by pcbouhid (Solution Posted, 13 Comments)
Difficulty: 2 of 5What´s your score? (in Games) Rating: 4.50
Posted on 2005-07-30 by pcbouhid (Solution Posted, 39 Comments)
Difficulty: 2 of 5The soccer tournament (in General) Rating: 2.33
Posted on 2005-07-26 by pcbouhid (Solution Posted, 11 Comments)
Difficulty: 2 of 5Splitting words (in Word Problems) Rating: 3.00
Posted on 2005-07-21 by pcbouhid (Solution Posted, 12 Comments)
Difficulty: 1 of 5Close to a million (in General) Rating: 3.40
Posted on 2005-07-18 by pcbouhid (Solution Posted, 12 Comments)
Difficulty: 2 of 5Only 3 lines? (in Geometry) Rating: 2.33
Posted on 2005-07-14 by pcbouhid (Solution Posted, 12 Comments)
Difficulty: 2 of 5The death of Sir Levikus (in Logic) Rating: 3.81
Posted on 2005-07-12 by pcbouhid (Solution Posted, 101 Comments)
Difficulty: 2 of 5Help ! (in Logic) Rating: 3.33
Posted on 2005-07-07 by pcbouhid (Solution Posted, 10 Comments)
Difficulty: 2 of 5Flap, Flep, Flip and Flop (in Logic) Rating: 3.56
Posted on 2005-07-04 by pcbouhid (Solution Posted, 10 Comments)
Difficulty: 3 of 5A digital arrangement (in Just Math) Rating: 3.29
Posted on 2005-06-30 by pcbouhid (Solution Posted, 20 Comments)
Difficulty: 3 of 5An ingenious evaluation (in Calculus) Rating: 2.00
Posted on 2005-06-26 by pcbouhid (Solution Posted, 7 Comments)
Difficulty: 1 of 5My clever father (in Tricks) Rating: 2.00
Posted on 2005-06-24 by pcbouhid (Solution Posted, 14 Comments)
Difficulty: 2 of 5Who is not rich? (in Logic) Rating: 4.17
Posted on 2005-06-22 by pcbouhid (Solution Posted, 24 Comments)
Difficulty: 1 of 5Complete the grid (in Word Problems) Rating: 4.00
Posted on 2005-06-16 by pcbouhid (Solution Posted, 48 Comments)
Difficulty: 2 of 5Square pairs (in Just Math) Rating: 2.67
Posted on 2005-06-15 by pcbouhid (Solution Posted, 7 Comments)
Difficulty: 2 of 5Eight cards (in Logic) Rating: 3.89
Posted on 2005-06-14 by pcbouhid (Solution Posted, 36 Comments)
Difficulty: 2 of 5The soccer results (in Logic) Rating: 3.00
Posted on 2005-06-10 by pcbouhid (Solution Posted, 19 Comments)
Difficulty: 2 of 5A question of primes (in Numbers) Rating: 2.50
Posted on 2005-06-08 by pcbouhid (Solution Posted, 13 Comments)
Difficulty: 2 of 5The test of the suits (in General) Rating: 2.50
Posted on 2005-06-07 by pcbouhid (Solution Posted, 15 Comments)
Difficulty: 2 of 5What is the logical criterion ? (in Logic) Rating: 3.83
Posted on 2005-06-03 by pcbouhid (Solution Posted, 9 Comments)
Difficulty: 3 of 5Twenty metal blocks (in Weights and Scales) Rating: 3.50
Posted on 2005-06-02 by pcbouhid (Solution Posted, 18 Comments)
Difficulty: 1 of 5Sign this love letter (in Riddles) Rating: 2.86
Posted on 2005-05-30 by pcbouhid (Solution Posted, 33 Comments)
Difficulty: 2 of 5Too many threes and sixes (in Just Math) Rating: 4.00
Posted on 2005-05-25 by pcbouhid (Solution Posted, 10 Comments)
Difficulty: 2 of 5Strange divisibility (in Just Math) Rating: 3.67
Posted on 2005-05-25 by pcbouhid (Solution Posted, 27 Comments)
Difficulty: 2 of 5Divisibility by 7 (in Just Math) Rating: 2.00
Posted on 2005-05-22 by pcbouhid (Solution Posted, 8 Comments)
Difficulty: 3 of 5The three conferences (in Just Math) Rating: 4.00
Posted on 2005-05-11 by pcbouhid (Solution Posted, 15 Comments)
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