A tale of three hats Here is a puzzle to start you off on the course - this is a very old puzzle, this version is taken from the novel Doctor Copernicus by John Banville (a book which I have recommended as worth reading on my books page). In a room there are ...
The Prisoners' Hats - Puzzles And Riddles
3 wise men & 5 hats puzzle: Only 1% can understand logic behind this puzzle - YouTube
A Fishermen, Sand and Hats Puzzle - Adventure Bagging