What time does the clock show? We’d love to hear from you! E-mail us at [email protected] to share your experience. This puzzle ...

Math may not be everyone’s favorite subject but when it comes to matchstick puzzles, few can resist giving it a try. At first ...

Math has long been a bane to American students. One way to counteract the difficulty is to discover the subject’s playful side. In this excerpt, a math professor reflects on recreational math and the ...

Flex your math muscles with this weekend’s brain teaser. Play now.

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 ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." When 2D puzzles are no longer exciting, 3D brain teasers are the way. These handheld puzzles require ...