The mathematician, who liked to annoy friends with improvised brainteasers, thought for a moment or two, then raised a glass ...

A global game reveals that our idea of the size of continents is more accurate than classic maps and their distortions ...

How to complete the "Blind to the World" quest in Where Winds Meet, and solve the bell puzzle and lake puzzle.

Puzzle Mania, the annual print section, takes a village to grow it from a kernel of an idea to the extravaganza it is today.