Mr. and Mrs. Anderson and Mr. and Mrs. Barton competed in a chess tournament. Of the three games played:

(i) In only the first game were the two players married to each other.

(ii) The men won two games and the women won one game.

(iii) The Andersons won more games than the Bartons.

(iv) Anyone who lost a game did not play the subsequent game.

Who did not lose a game?

Here is a good shape problem I heard about recently:

There are 3 buns with sprinkles on the top that 4 people want to share. The buns have a radius of 3 inches, 4 inches and 5 inches, and although the people know where the center of each bun is, they don't know anything else about the buns, and all they have is a knife to divide the buns.

What is the fewest number of pieces required to let each person have the same area of bun? (Note that each cut must be from top to bottom; horizontal cuts would result in uneven sprinkle distribution. The cuts don't need to be straight.)

Three digits - all prime! (in Numbers) Rating: 5.00
Posted on 2012-02-01 by Ady TZIDON (No Solution Yet, 2 Comments)

Covering a rectangle by circles (in Shapes) Rating: 4.50
Posted on 2012-01-30 by Ady TZIDON (No Solution Yet, 6 Comments)

Sum of squares (in Just Math)
Posted on 2012-01-28 by Ady TZIDON (No Solution Yet, 2 Comments)

5-by-5 Square Tic-Tac-Toe (in Games)
Posted on 2012-01-26 by Dustin (No Solution Yet, 1 Comments)

Logical connectives (in Algorithms) Rating: 4.50
Posted on 2012-01-24 by Math Man (No Solution Yet, 6 Comments)

Four Point Spheres (in Probability)
Posted on 2012-01-22 by K Sengupta (No Solution Yet, 2 Comments)

Isosceles from Regular (in Shapes) Rating: 5.00
Posted on 2012-01-20 by Jer (No Solution Yet, 13 Comments)

Who stole the Perplexicon? (in Liars and Knights)
Submitted By Dustin. Solution posted on 2012-01-27 05:59:32

PentaWord 3 - Vowel Ring (in Word Problems)
Submitted By brianjn. Solution posted on 2012-01-10 21:35:45