What is the radius of this circle, and where is its centre?

Solution revealed: 15 Oct 2021

Here's a square root problem for you to solve.

Solution revealed: 08 Oct 2021

What is the area of this square-in-a-hexagon?

Solution revealed: 01 Oct 2021

Where do these teachers travel from, and what do they teach?

Solution has been revealed

Here's some tricky trig to transform!

Does this surd expression always simplify to an integer?

How many boxes of teabags might be delivered?

Can you track down any multiples of 13 in this challenge?

What is the perimeter of this triangle?