You may also like


How can you cut a doughnut into 8 equal pieces with only three cuts of a knife?


Grandma found her pie balanced on the scale with two weights and a quarter of a pie. So how heavy was each pie?

Red Balloons, Blue Balloons

Katie and Will have some balloons. Will's balloon burst at exactly the same size as Katie's at the beginning of a puff. How many puffs had Will done before his balloon burst?

Pizza Portions

Age 7 to 11
Challenge Level
There are lots of answers to this problem, depending on what questions you choose to ask.

Have a go yourself, and if you discover anything interesting, e-mail us to tell us what you've done!