For four game show variations of the hat puzzle, four clever ways to earn a better payoff than you might expect. In this month’s Quanta Insights puzzle, we explored three examples of hat puzzles, in ...

It has been a pure delight to melt your brains every week, but today’s solution will be the last installment of the Gizmodo Monday Puzzle. Thank you to everyone who commented, emailed, or puzzled ...

Earlier today I set you this logic puzzle. Here is is again with the solution. (If you found it too simple. Here’s a harder version.) Head sums Ade, Binky, and Carl are honest perfect logicians. A hat ...

Puzzles and dystopian fiction have a recurring theme in common: those in power forcing their subjects to play twisted games for entertainment. Crack the spine of any brainteaser book, and it reads ...

Here’s a riddle: 100 prisoners stand in line, one in front of the other. Each wears either a red hat or a blue hat. Every prisoner can see the hats of the people in front – but not their own hat, or ...