Some say the reason most manhole covers are round is that a circle cannot fall through a smaller circular hole. Which of ...

Brain teaser puzzles test the reader's critical thinking and problem-solving skills by challenging them to solve a problem.

A math puzzle is a type of brain teaser that tests the reader's critical thinking and problem-solving skills by challenging ...

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 ...

The inside of a bus may not seem like the ideal place to rekindle your interest in math, but a group of mathematicians is betting it will. Last month, the Mathematical Sciences Research Institute of ...

The following is adapted from the introduction to “The Riddler: Fantastic Puzzles from FiveThirtyEight,” published by W. W. Norton & Co. It is in stores today! The world’s oldest collection of math ...

Imagine someone handing you a scrap of net from a basketball hoop, with knotted red cord attached to the netting, and telling you this bit of string is a clue in a puzzle. How quickly — if ever — ...