Can you solve the clues to find out who's who on the friendship graph?
How can you decide if a graph is traversable?
In this twist on the well-known Countdown numbers game, use your knowledge of Powers and Roots to make a target.
Can you deduce which Olympic athletics events are represented by the graphs?
Four friends must cross a bridge. How can they all cross it in just 17 minutes?
Can you find a strategy that ensures you get to take the last biscuit in this game?