Puzzle

Puzzle page
Which fits best - a square peg in a round hole, or a round peg in a square hole?
Puzzle page
Puzzle page: The Möbius Challenge
Set your beloved heart a-flutter with this mathematical valentine
Puzzle page
Try your hand at some tricky trig!
Puzzle page
Puzzle page
Count up your booty of jewels and potions!
Puzzle page
The 3 3 8 8 puzzle
Pappus' Theorem
Puzzle page
A greek soldier, and a persion soldier walk into a battle...
Puzzle page
Similar triangles and colouring the plane
Hint
Puzzle page
Browse the Plus puzzles