Here's some tricky trig to transform!

Solution revealed: 06 Aug 2021

Does this surd expression always simplify to an integer?

Solution has been revealed

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?

Freddy the fly is wondering about his chances of landing closest to point B...

For which values of n is this expression an integer?

Would you trust this housemate?

When is this expression prime?