Puzzle

Puzzle pageWhich fits best - a square peg in a round hole, or a round peg in a square hole?

Puzzle page: The Möbius ChallengeSet your beloved heart a-flutter with this mathematical valentine

Puzzle pageTry your hand at some tricky trig!

Puzzle pageCount up your booty of jewels and potions!

Puzzle pageThe 3 3 8 8 puzzle

Pappus' Theorem

Puzzle pageA greek soldier, and a persion soldier walk into a battle...

Puzzle pageSimilar triangles and colouring the plane

Hint

Puzzle pageBrowse the Plus puzzles