Imagine you have an unlimited number of four types of triangle. How many different tetrahedra can you make?
Chris and Jo put two red and four blue ribbons in a box. They each pick a ribbon from the box without looking. Jo wins if the two ribbons are the same colour. Is the game fair?
Imagine you were given the chance to win some money... and imagine you had nothing to lose...
Can you find the link between these beautiful circle patterns and Farey Sequences?
Which line graph, equations and physical processes go together?
How many different ways can you find of fitting five hexagons together? How will you know you have found all the ways?
Was it possible that this dangerous driving penalty was issued in error?
