![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 ... 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 ...](https://www.math.mcgill.ca/rags/JAC/124/Hats.gif)
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 ...
![Four Criminals and Black and White Hats Riddle | BhaviniOnline.com | Black and white hats, Riddles, Brain teasers for kids Four Criminals and Black and White Hats Riddle | BhaviniOnline.com | Black and white hats, Riddles, Brain teasers for kids](https://i.pinimg.com/originals/d9/4e/89/d94e89970fc9a61709651b994cb297ec.jpg)