I enjoy puzzles, and want to be able to use puzzles and games in my classrooms. But to do that effectively I need to keep track of all the different places to find puzzles, whether new ones, or older puzzles I’ve used before. Here is my attempt to compile as many puzzles as I can.

Check the menu for specific types of puzzles, or look at the bottom of the page for a list of all puzzles stored on this website.

Below is a list of other places to look for mathematical puzzles, games, and curiosities.

- The NRICH Project (University of Cambridge)
- Double Helix (CSIRO)
- Canadian Math Kangaroo Contest
- Brilliant.org
- Math = Love (@mathequalslove)
- Open Middle
- Play With Your Math
- Puzzle of the Week
- trol = Teacher Resources on Line
- Parentheses, Brackets and Braces
- Resourceaholic (looks like some puzzles highlighted among the Gems)
- @Five_Triangles
- @jamestanton
- #FridayPuzzle (@Teejay_Maths)

**This page is currently being rebuilt. The original version of this page can be found here.**

Only Ones

Using any or all of the operations of addition, subtraction, multiplication, division and exponentiation (and brackets), and as many of

Read more.One Spot Dice

You have two blank 6-sided dice. You are allowed to choose any number of the twelve faces and draw exactly

Read more.Number of Letters

The numbers seven, eleven, fifteen, nineteen make a sequence where the numbers go up by 4 each time. But if

Read more.Lousy Labelling

Three boxes filled with lots of balls are on the table. One box is full of red balls, one is

Read more.Combo Cube

Eight cubes are marked with one dot on two opposite faces, two dots on two opposite faces and three dots

Read more.One Truth, Two Lies

Two straight lines, AB and CD, are on the same plane. One, but only one, of the following statements is

Read more.Area #7

FInd the exact value for the purple area within the dodecagon. Note: Not for the faint-hearted.

Read more.