A match of cards

Now, this one's a really interesting puzzle. Players A and B each have a well shuffled standard pack of 52 cards. The players deal th...

Salary puzzle

Three co-workers would like to know their average salary. However, they don’t want to tell each other their own salaries, for fear of eithe...

Physics - the Centrifuge Problem

After so many mathematics and game theory puzzles, I've finally got some good physics puzzle to solve! I must say, although the world s...