Given our political climate, any serious discussion is at risk of going off on a tangent. The post Math Puzzle for July 25, ...

Find one million consecutive positive numbers, none of which are prime.

How was the slice made? If the cube’s side is half an inch, what is the side of the hexagon? After dropping the cube into his coffee, the engineer turned his attention to a doughnut lying flat on a ...

Math puzzle: Imagine there’s no zero You may say I’m a dreamer. But our numeral system is not the only one.