Critical Thinking Puzzles

A sheet of paper has statements numbered from 1 to 100. Statement N says "Exactly N of the statements on this sheet are false." Ho...

A stick of length 1 metre is divided randomly into 3 parts. What is the probability that a triangle can be made with those three parts?

Consider a chessboard with a single Rook. A Rook can move any number of square sideways/forward, but not diagonally. What is the minimum num...

If a boy and a half can eat a hot dog and a half in a minute and a half, how many hot dogs can six boys eat in six minutes?

A drinks machine offers three selections - Tea, Coffee or Random (Either tea or Coffee)but the machine has been wired up wrongly so that eac...

A blindfolded man is asked to sit in the front of a carrom board. The holes of the board are shut with lids in random order, i.e. any number...

What are the chances that at least two out of a group of fifty people share the same birthday?