Puzzle index for geometry puzzles, logic puzzles, math puzzles, weight puzzles, moves puzzles and puzzles.

You can sort the puzzle list by clicking The Little Math Puzzle has been a K-12 Internet activity since 1995 for grades 5-9.

Currently the puzzles have ceased but the site maintains complete The puzzle originated with a self-taught maths genius nearly a century ago - the solution may lead to advances in physics and internet security.