Connecting dots (in General) Rating: 4.00 Posted on 2009-07-20 by pcbouhid (Solution Posted, 0 Comments)
Just one expression (in Just Math) Rating: 4.00 Posted on 2009-07-07 by pcbouhid (Solution Posted, 1 Comments)
How much time will you spend? (in Tricks) Posted on 2009-06-29 by pcbouhid (Solution Posted, 3 Comments)
A personal lotto game (in Probability) Posted on 2009-06-12 by pcbouhid (Solution Posted, 4 Comments)
Wonderful problem (in Cryptography) Rating: 3.00 Posted on 2009-06-07 by pcbouhid (Solution Posted, 7 Comments)
Three guys, three numbers (in Logic) Rating: 4.00 Posted on 2009-05-01 by pcbouhid (Solution Posted, 12 Comments)
Who said this? (in Cryptography) Rating: 3.00 Posted on 2009-04-19 by pcbouhid (Solution Posted, 5 Comments)
Five women vacations (in Logic) Rating: 4.00 Posted on 2009-04-11 by pcbouhid (Solution Posted, 2 Comments)
Five railway employees (in Logic) Rating: 3.00 Posted on 2009-04-02 by pcbouhid (Solution Posted, 4 Comments)
Making integer an expression (in Just Math) Rating: 3.00 Posted on 2009-03-20 by pcbouhid (Solution Posted, 12 Comments)
Sequence with only 3 numbers (in Just Math) Rating: 2.00 Posted on 2009-03-07 by pcbouhid (Solution Posted, 11 Comments)
A chess problem for beginners (in Games) Posted on 2009-03-04 by pcbouhid (Solution Posted, 10 Comments)
Two players, two pots (in Games) Rating: 2.00 Posted on 2009-02-21 by pcbouhid (Solution Posted, 2 Comments)
Another case of divisibility (in Just Math) Posted on 2009-02-15 by pcbouhid (Solution Posted, 3 Comments)
Attack and defense (in Probability) Rating: 5.00 Posted on 2009-02-06 by pcbouhid (Solution Posted, 2 Comments)
X-crabble (in Word Problems) Rating: 4.00 Posted on 2009-01-27 by pcbouhid (Solution Posted, 1 Comments)
The hour-glass (in Just Math) Rating: 2.50 Posted on 2009-01-20 by pcbouhid (Solution Posted, 3 Comments)
Digits 251 in sequence (in Just Math) Posted on 2009-01-05 by pcbouhid (Solution Posted, 5 Comments)
Power x mod x (in Just Math) Rating: 4.00 Posted on 2008-12-18 by pcbouhid (Solution Posted, 5 Comments)
12 on foreheads (in Logic) Rating: 4.00 Posted on 2008-12-17 by pcbouhid (Solution Posted, 2 Comments)
Rationalize the denominator (in Just Math) Posted on 2008-12-14 by pcbouhid (Solution Posted, 3 Comments)
Four special natural numbers (in Just Math) Posted on 2008-12-11 by pcbouhid (Solution Posted, 8 Comments)
Constructing a right triangle (in Geometry) Posted on 2008-12-07 by pcbouhid (Solution Posted, 6 Comments)
Minimum time (in Calculus) Rating: 4.33 Posted on 2008-12-04 by pcbouhid (Solution Posted, 5 Comments)
Arranging numbers in a row (in Numbers) Rating: 2.33 Posted on 2008-11-20 by pcbouhid (Solution Posted, 12 Comments)
Flaps, Fleps, Flips, Flops, and Flups (in Logic) Rating: 1.50 Posted on 2008-11-16 by pcbouhid (Solution Posted, 4 Comments)
Digital power (in Just Math) Rating: 5.00 Posted on 2008-11-15 by pcbouhid (Solution Posted, 6 Comments)
Balls in an urn (in Probability) Rating: 3.50 Posted on 2008-11-11 by pcbouhid (Solution Posted, 4 Comments)
A remarkable multiplication (in Just Math) Rating: 5.00 Posted on 2008-11-09 by pcbouhid (Solution Posted, 3 Comments)
The 3 containers (in Just Math) Rating: 3.50 Posted on 2008-11-05 by pcbouhid (Solution Posted, 5 Comments)
All divisible by 7 (in Just Math) Rating: 3.50 Posted on 2008-11-04 by pcbouhid (Solution Posted, 8 Comments)
Singular pair of numbers (in Numbers) Posted on 2008-11-03 by pcbouhid (Solution Posted, 3 Comments)
The slug and the snail (in Just Math) Posted on 2008-10-27 by pcbouhid (Solution Posted, 7 Comments)
True coins, fake coins (in Weights and Scales) Rating: 5.00 Posted on 2008-10-23 by pcbouhid (Solution Posted, 9 Comments)
Cows, horses and dogs (in Just Math) Posted on 2008-10-20 by pcbouhid (Solution Posted, 12 Comments)
Top four people (in Logic) Rating: 2.50 Posted on 2008-10-18 by pcbouhid (Solution Posted, 3 Comments)
9 balls, 10 straight lines (in General) Rating: 2.00 Posted on 2008-10-12 by pcbouhid (Solution Posted, 21 Comments)
Crazy math? (in General) Rating: 2.50 Posted on 2008-10-10 by pcbouhid (Solution Posted, 5 Comments)
Who committed the murder? (in Logic) Rating: 3.00 Posted on 2008-10-08 by pcbouhid (Solution Posted, 6 Comments)
Exactly 20 games (in Just Math) Rating: 3.20 Posted on 2008-10-01 by pcbouhid (Solution Posted, 5 Comments)
Primes in arithmetic progression (in Just Math) Posted on 2008-09-30 by pcbouhid (Solution Posted, 9 Comments)
A long division (in Just Math) Rating: 3.00 Posted on 2008-09-29 by pcbouhid (Solution Posted, 2 Comments)
Numerical path (in Logic) Rating: 2.50 Posted on 2008-09-23 by pcbouhid (Solution Posted, 11 Comments)
Pairs of primes (in Numbers) Rating: 5.00 Posted on 2008-09-21 by pcbouhid (Solution Posted, 2 Comments)
Trigonometric relationship (in Just Math) Posted on 2008-09-19 by pcbouhid (Solution Posted, 2 Comments)
The mouse and the cheese (in Probability) Rating: 3.00 Posted on 2008-09-11 by pcbouhid (Solution Posted, 4 Comments)
Always multiple (in Just Math) Rating: 4.00 Posted on 2008-09-07 by pcbouhid (Solution Posted, 1 Comments)
Students in a tournament (in Just Math) Rating: 2.33 Posted on 2008-09-05 by pcbouhid (Solution Posted, 7 Comments)
Doubles on reverse (in Just Math) Rating: 3.00 Posted on 2008-09-02 by pcbouhid (Solution Posted, 3 Comments)
Catching your enemy (in Logic) Rating: 2.33 Posted on 2008-08-25 by pcbouhid (Solution Posted, 20 Comments)
Trisecting an angle (in Geometry) Rating: 2.00 Posted on 2008-08-24 by pcbouhid (Solution Posted, 7 Comments)
The missing letter (in Sequences) Rating: 3.50 Posted on 2008-08-22 by pcbouhid (Solution Posted, 6 Comments)
No repeated numbers (in Logic) Rating: 4.00 Posted on 2008-08-20 by pcbouhid (Solution Posted, 20 Comments)
A domino puzzle (in Logic) Rating: 3.00 Posted on 2008-08-15 by pcbouhid (Solution Posted, 3 Comments)
Evaluate this remainder (in Just Math) Rating: 4.00 Posted on 2008-08-13 by pcbouhid (Solution Posted, 6 Comments)
Password in an ATM (in Probability) Rating: 3.00 Posted on 2008-08-11 by pcbouhid (Solution Posted, 2 Comments)
Where is the arsenic? (in Logic) Rating: 1.50 Posted on 2008-08-10 by pcbouhid (Solution Posted, 6 Comments)
The smallest sum (in Logic) Rating: 3.00 Posted on 2008-08-08 by pcbouhid (Solution Posted, 3 Comments)
Captain Smith and his legacy (in Just Math) Posted on 2008-08-01 by pcbouhid (Solution Posted, 1 Comments)
Minimum area of a triangle (in Just Math) Rating: 2.00 Posted on 2008-07-30 by pcbouhid (Solution Posted, 10 Comments)
Holes in a magic square (in Just Math) Rating: 3.00 Posted on 2008-07-26 by pcbouhid (Solution Posted, 8 Comments)
Identify the cities (in General) Rating: 4.00 Posted on 2008-07-25 by pcbouhid (Solution Posted, 9 Comments)
A system of modular equations (in Just Math) Posted on 2008-07-20 by pcbouhid (Solution Posted, 8 Comments)
Roulette anyone? (in Just Math) Rating: 4.00 Posted on 2008-07-13 by pcbouhid (Solution Posted, 3 Comments)
The farmer and the sheep (in Just Math) Rating: 4.50 Posted on 2008-07-11 by pcbouhid (Solution Posted, 5 Comments)
The five 3´s (in Just Math) Rating: 4.50 Posted on 2008-07-07 by pcbouhid (Solution Posted, 35 Comments)
A persistent divisibility (in Just Math) Rating: 4.50 Posted on 2008-07-03 by pcbouhid (Solution Posted, 2 Comments)
Which is larger? (in Just Math) Rating: 4.00 Posted on 2008-06-30 by pcbouhid (Solution Posted, 7 Comments)
Two English words (in Word Problems) Rating: 3.00 Posted on 2008-06-27 by pcbouhid (Solution Posted, 8 Comments)
Basic addition (in Just Math) Rating: 3.00 Posted on 2008-06-25 by pcbouhid (Solution Posted, 2 Comments)
A billiard challenge (in Geometry) Rating: 3.50 Posted on 2008-06-23 by pcbouhid (Solution Posted, 4 Comments)
The girls, the boxes and the balls (in Logic) Rating: 4.33 Posted on 2008-06-19 by pcbouhid (Solution Posted, 9 Comments)
Water at 76º C (in Weights and Scales) Rating: 4.00 Posted on 2008-06-17 by pcbouhid (Solution Posted, 5 Comments)
The horse and the grass field (in Calculus) Rating: 4.00 Posted on 2008-06-15 by pcbouhid (Solution Posted, 3 Comments)
The missing piece (chess) (in Games) Rating: 4.00 Posted on 2008-06-12 by pcbouhid (Solution Posted, 15 Comments)
Four cars (in Just Math) Rating: 4.25 Posted on 2008-06-09 by pcbouhid (Solution Posted, 6 Comments)
Evaluate this infinite product (in Calculus) Rating: 5.00 Posted on 2008-06-05 by pcbouhid (Solution Posted, 5 Comments)
An equation with consecutive primes (in Just Math) Rating: 3.00 Posted on 2006-01-16 by pcbouhid (Solution Posted, 23 Comments)
Placing 20 pieces (in General) Rating: 2.00 Posted on 2006-01-14 by pcbouhid (Solution Posted, 4 Comments)
Crossed sums (in Just Math) Rating: 3.00 Posted on 2006-01-12 by pcbouhid (Solution Posted, 12 Comments)
Identify the chess pieces (in Games) Rating: 3.00 Posted on 2006-01-09 by pcbouhid (Solution Posted, 15 Comments)
Amazing news (in Cryptography) Rating: 4.00 Posted on 2006-01-07 by pcbouhid (Solution Posted, 4 Comments)
Two spheres in a tank (in Science) Rating: 3.50 Posted on 2006-01-05 by pcbouhid (Solution Posted, 11 Comments)
A rational cryptarithm (in Just Math) Rating: 2.67 Posted on 2005-12-29 by pcbouhid (Solution Posted, 17 Comments)
All the months of the year (in General) Rating: 4.00 Posted on 2005-12-27 by pcbouhid (Solution Posted, 4 Comments)
No trigonometry, no algebra (in Geometry) Rating: 3.00 Posted on 2005-12-23 by pcbouhid (Solution Posted, 10 Comments)
Evaluate this sum (in Just Math) Rating: 4.33 Posted on 2005-12-21 by pcbouhid (Solution Posted, 14 Comments)
The hired man (in Logic) Rating: 3.50 Posted on 2005-12-19 by pcbouhid (Solution Posted, 20 Comments)
Three women, three numbers (in Logic) Rating: 3.38 Posted on 2005-12-15 by pcbouhid (Solution Posted, 27 Comments)
All rationals? (in Geometry) Rating: 3.00 Posted on 2005-12-13 by pcbouhid (Solution Posted, 3 Comments)
Nine square pieces (in General) Rating: 3.00 Posted on 2005-12-11 by pcbouhid (Solution Posted, 9 Comments)
The judge´s wife (in Logic) Rating: 4.17 Posted on 2005-12-08 by pcbouhid (Solution Posted, 10 Comments)
How can this be? (in Riddles) Rating: 4.00 Posted on 2005-12-04 by pcbouhid (Solution Posted, 5 Comments)
Please, Mr. Postman (in Cryptography) Rating: 3.00 Posted on 2005-12-02 by pcbouhid (Solution Posted, 17 Comments)
Forty-two pieces (in Logic) Rating: 3.14 Posted on 2005-11-30 by pcbouhid (Solution Posted, 11 Comments)
The prisoners and the beans (in Logic) Rating: 3.80 Posted on 2005-11-27 by pcbouhid (Solution Posted, 38 Comments)
Reproduce this drawing (in General) Rating: 3.50 Posted on 2005-11-25 by pcbouhid (Solution Posted, 33 Comments)
Anagramming sentences (in Word Problems) Rating: 4.14 Posted on 2005-11-20 by pcbouhid (Solution Posted, 5 Comments)
Only 6´s and 9´s (in General) Rating: 3.40 Posted on 2005-11-14 by pcbouhid (Solution Posted, 7 Comments)
Covering a chessboard (in Logic) Rating: 3.67 Posted on 2005-11-12 by pcbouhid (Solution Posted, 15 Comments)
Find these constants I (in Just Math) Rating: 2.80 Posted on 2005-11-10 by pcbouhid (Solution Posted, 10 Comments)
Remarkable man, remarkable truth (in General) Rating: 4.33 Posted on 2005-11-09 by pcbouhid (Solution Posted, 12 Comments)
The least square (in Just Math) Rating: 4.00 Posted on 2005-11-05 by pcbouhid (Solution Posted, 11 Comments)
Once a liar, always a liar (in Logic) Rating: 2.93 Posted on 2005-11-02 by pcbouhid (Solution Posted, 26 Comments)
What´s your score II? (in General) Rating: 4.00 Posted on 2005-10-31 by pcbouhid (Solution Posted, 26 Comments)
An infinite chessboard (in Just Math) Rating: 3.43 Posted on 2005-10-28 by pcbouhid (Solution Posted, 26 Comments)
Pieces in the box (in General) Rating: 4.33 Posted on 2005-10-26 by pcbouhid (Solution Posted, 15 Comments)
Calm down, people! (in Logic) Rating: 3.33 Posted on 2005-10-25 by pcbouhid (Solution Posted, 44 Comments)
The omitted age (in Logic) Rating: 3.00 Posted on 2005-10-20 by pcbouhid (Solution Posted, 21 Comments)
Words on the rocks, please (in Word Problems) Rating: 4.00 Posted on 2005-10-17 by pcbouhid (Solution Posted, 5 Comments)
A pyramid of words (in Word Problems) Rating: 4.00 Posted on 2005-10-12 by pcbouhid (Solution Posted, 4 Comments)
2003 - An odyssey with pi and e (in Just Math) Rating: 3.11 Posted on 2005-10-09 by pcbouhid (Solution Posted, 9 Comments)
String of letters (in Logic) Rating: 4.00 Posted on 2005-10-06 by pcbouhid (Solution Posted, 15 Comments)
Twelve what?! (in General) Rating: 2.33 Posted on 2005-10-04 by pcbouhid (Solution Posted, 22 Comments)
Make a hole (in General) Rating: 3.40 Posted on 2005-10-02 by pcbouhid (Solution Posted, 6 Comments)
Crossing the board (in General) Rating: 3.80 Posted on 2005-09-30 by pcbouhid (Solution Posted, 10 Comments)
Leave a different letter (in Tricks) Rating: 3.67 Posted on 2005-09-28 by pcbouhid (Solution Posted, 19 Comments)
Closest to pi (in Just Math) Rating: 3.00 Posted on 2005-09-25 by pcbouhid (Solution Posted, 25 Comments)
Star of David (in General) Rating: 4.00 Posted on 2005-09-20 by pcbouhid (Solution Posted, 10 Comments)
The reversed numbers (in Just Math) Rating: 4.50 Posted on 2005-09-16 by pcbouhid (Solution Posted, 7 Comments)
A tribute to Clarice (in General) Rating: 4.10 Posted on 2005-09-08 by pcbouhid (Solution Posted, 21 Comments)
Five red discs (in Logic) Rating: 4.08 Posted on 2005-09-07 by pcbouhid (Solution Posted, 26 Comments)
A string of primes (in Numbers) Rating: 2.00 Posted on 2005-09-01 by pcbouhid (Solution Posted, 4 Comments)
Celsius x Fahrenheit (in Just Math) Rating: 3.33 Posted on 2005-08-31 by pcbouhid (Solution Posted, 9 Comments)
Reconstruct this chess game (in Games) Rating: 3.50 Posted on 2005-08-29 by pcbouhid (Solution Posted, 8 Comments)
What´s the trick? (in Just Math) Rating: 2.80 Posted on 2005-08-25 by pcbouhid (Solution Posted, 14 Comments)
Digital sum (in Just Math) Rating: 4.25 Posted on 2005-08-20 by pcbouhid (Solution Posted, 7 Comments)
The 5 jugs (in General) Rating: 2.25 Posted on 2005-08-18 by pcbouhid (Solution Posted, 36 Comments)
Connecting dots (in General) Rating: 1.50 Posted on 2005-08-14 by pcbouhid (Solution Posted, 9 Comments)
The murderer in the Hotel (in Logic) Rating: 3.44 Posted on 2005-08-11 by pcbouhid (Solution Posted, 59 Comments)
The failing LEDs (in Just Math) Rating: 4.33 Posted on 2005-08-09 by pcbouhid (Solution Posted, 11 Comments)
Where is the White King? (in Games) Rating: 3.29 Posted on 2005-08-05 by pcbouhid (Solution Posted, 21 Comments)
The Remaining Digits (in Logic) Rating: 4.33 Posted on 2005-08-04 by pcbouhid (Solution Posted, 20 Comments)
Complete the crossword (in Word Problems) Posted on 2005-08-01 by pcbouhid (Solution Posted, 13 Comments)
What´s your score? (in Games) Rating: 4.50 Posted on 2005-07-30 by pcbouhid (Solution Posted, 39 Comments)
The soccer tournament (in General) Rating: 2.33 Posted on 2005-07-26 by pcbouhid (Solution Posted, 11 Comments)
Splitting words (in Word Problems) Rating: 3.00 Posted on 2005-07-21 by pcbouhid (Solution Posted, 12 Comments)
Close to a million (in General) Rating: 3.40 Posted on 2005-07-18 by pcbouhid (Solution Posted, 12 Comments)
Only 3 lines? (in Geometry) Rating: 2.33 Posted on 2005-07-14 by pcbouhid (Solution Posted, 12 Comments)
The death of Sir Levikus (in Logic) Rating: 3.81 Posted on 2005-07-12 by pcbouhid (Solution Posted, 101 Comments)
Flap, Flep, Flip and Flop (in Logic) Rating: 3.56 Posted on 2005-07-04 by pcbouhid (Solution Posted, 10 Comments)
A digital arrangement (in Just Math) Rating: 3.29 Posted on 2005-06-30 by pcbouhid (Solution Posted, 20 Comments)
An ingenious evaluation (in Calculus) Rating: 2.00 Posted on 2005-06-26 by pcbouhid (Solution Posted, 7 Comments)
My clever father (in Tricks) Rating: 2.00 Posted on 2005-06-24 by pcbouhid (Solution Posted, 14 Comments)
Who is not rich? (in Logic) Rating: 4.17 Posted on 2005-06-22 by pcbouhid (Solution Posted, 24 Comments)
Complete the grid (in Word Problems) Rating: 4.00 Posted on 2005-06-16 by pcbouhid (Solution Posted, 48 Comments)
Square pairs (in Just Math) Rating: 2.67 Posted on 2005-06-15 by pcbouhid (Solution Posted, 7 Comments)
The soccer results (in Logic) Rating: 3.00 Posted on 2005-06-10 by pcbouhid (Solution Posted, 19 Comments)
A question of primes (in Numbers) Rating: 2.50 Posted on 2005-06-08 by pcbouhid (Solution Posted, 13 Comments)
The test of the suits (in General) Rating: 2.50 Posted on 2005-06-07 by pcbouhid (Solution Posted, 15 Comments)
What is the logical criterion ? (in Logic) Rating: 3.83 Posted on 2005-06-03 by pcbouhid (Solution Posted, 9 Comments)
Twenty metal blocks (in Weights and Scales) Rating: 3.50 Posted on 2005-06-02 by pcbouhid (Solution Posted, 18 Comments)
Sign this love letter (in Riddles) Rating: 2.86 Posted on 2005-05-30 by pcbouhid (Solution Posted, 33 Comments)
Too many threes and sixes (in Just Math) Rating: 4.00 Posted on 2005-05-25 by pcbouhid (Solution Posted, 10 Comments)
Strange divisibility (in Just Math) Rating: 3.67 Posted on 2005-05-25 by pcbouhid (Solution Posted, 27 Comments)
Divisibility by 7 (in Just Math) Rating: 2.00 Posted on 2005-05-22 by pcbouhid (Solution Posted, 8 Comments)
The three conferences (in Just Math) Rating: 4.00 Posted on 2005-05-11 by pcbouhid (Solution Posted, 15 Comments)
