How many guards to you need to supervise an art gallery?
Can you cut up an old playing card to make a hole big enough to walk through?
Here's a number game with a clever strategy.
If you want to draw a rhombus on dotty paper, can you start with any two dots?
How to fold exact fractions without guessing or fiddling.
How shaking hands with people in two different ways leads to a mathematical proof.
Find out how an annoying parking metre can get your creative juices flowing!
Here's a game: pick a positive natural number and if yours is the smallest number no one else has picked, you win. What's the best strategy?