Geometric arrangements of coins can serve as the basis for all sorts of puzzles. One popular variant involves going from one configuration to another by sliding coins, subject to given constraints, ...

A fun and visual coin puzzle that challenges you to rearrange a triangle of coins using just three moves. This clever brain teaser is perfect for impressing friends or testing quick thinking in a ...

Brain teasers are puzzles specifically designed to challenge your thinking and problem-solving skills. These puzzles often require logical and creative approaches to finding the solution. This ...

Our recent suite of puzzles featured the humble double-pan balance scale, historically a symbol of commerce and government, art and science. Balance scales are also popular in recreational mathematics ...