Thinking about Playthinks and Your Brain
Beginnings, Greek Math, Geometry and Ahmes' Puzzle
Primes, Magic Squares and Queen Dido's Problem
Points, Topology and Euler's Seven Bridges Puzzle
Knights And Queens, Cutting Cakes and The Mystery of the Pendulum
Science, Dimensions, Randomness and The Tower Of Hanoi Puzzle
Infinity, Impossibility/Impossible Figures, Mixed Hats and Mixing Tea with Milk
Paradoxes, Cellular Automata, Hollow Cube and Night Crossing Puzzle
Perception, Illusions, Parity and Puzzles about Truth and Lies of Ray