You may also like

problem icon

For Richer for Poorer

Charlie has moved between countries and the average income of both has increased. How can this be so?

problem icon


What can you see? What do you notice? What questions can you ask?

problem icon

Advent Calendar 2009

A collection of our favourite pictorial problems, one for each day of Advent.

Road Maker

Age 14 to 18 Challenge Level:
Think about what the rules are telling you, rather than your intuitive preconceptions about the meaning of some of the words.