A classic puzzle conundrum goes like this: You’re in a room with two ropes and a box of matches. Each rope takes exactly an ...

From Reader’s Digest‘s Mind Stretchers books, these math puzzles have a bit of everything! Get Reader’s Digest’ s Read Up newsletter for more puzzles, pets, humor, travel, tech and fun ...

Flex your math muscles with this weekend’s brain teaser. Play now. ... Play now. Skip to main content. Scientific American. May 17, 2025. Math Puzzle: Measure the Star. By Heinrich Hemme.

About This Course. In this course we will investigate Rubik's cube, the 15-puzzle, TopSpin, and other permutation puzzles. Our goal is to understand theses from a mathematical viewpoint; we will come ...