New posts in Puzzle

Can this puzzle be solved mathematically?

The ant and the rubber string.

Does there exist a partition of an L to create a square?

Famous businessman mathematical puzzle ${}{}$

Upside-down equation: algebra puzzle

Error in solution of Peter Winkler "red and blue dice" puzzle?

Rosenfeld's $7 \times 7$ square puzzle

Colored graph with $2$ colors

Group structure of rotating-square puzzle

Armed with a sword and a shield, a proud knight combats a monstrous hydra with 100 heads.