A version of this puzzle originally appeared in the October 1960 issue of Scientific American. What’s the Most Distant Galaxy ...

Duah: Using puzzles, both at home and in classrooms, can restore the often-forgotten truth that learning happens in ...

Math is not everyone’s favorite, understandably. Hours of math homework and difficult equations can make anyone sour on the subject. But when math problems are outside of a school setting, there’s no ...

This past week's puzzle, as presented: Ping pong (or table tennis) is a game of both odds and luck. Most games I have seen have been rather one sided — it is really rare that two players are really at ...

When our brains don't have a good intuition for reasoning with numbers, explicit probabilistic thinking can lead to improved decision-making. A man went on an airplane ride. Unfortunately, he fell out ...