Flex your math muscles with this weekend’s brain teaser. Play now. Skip to main content. Scientific American. April 26, 2025. Math Puzzle: Name the Hair Color. By Martin Gardner.

Of the many wonderful chessboard math problems, this one is my favorite because of its surprising solution. Who would expect the coloring of the squares to be the key to unlocking the puzzle? But ...

Flex your math muscles with this weekend’s brain teaser. ... Scientific American. February 1, 2025. Math Puzzle: Walk around the Pole. By Martin Gardner. ... What color is the bear?

The math puzzle, for example, changes every day. The answers can’t really be written down in a list — even once you learn what each color means, you still have to solve the equation itself on ...

In 1979, Hounsfield won the Nobel Prize in Physiology or Medicine for his role in the development of computer-assisted ...

Puzzle Brain teaser: This 'tricky' nature-inspired math puzzle might stump you if you're not careful Can you solve this math equation featuring yellow dandelions, purple flowers and four-leaf clovers?