This collection of mathematical puzzles and games follows in the tradition of the Canterbury, Tokyo and Moscow puzzles. Most of them have been created or adapted by the author, or his colleagues and students, while the rest have come his way from many different corners of the world, but are still not sufficiently well known. Solving them requires no sophisticated mathematical tools, but a fair doses of ingenuity, and the desire to have genuine fun. Here is a sample: The sum of the ages of my five daughters is 47 (a prime number), and yet the ages of any two of them have a common divisor greater than 1. How old are they?