How risky is your journey to school?
Can you match the cards and figure out whether the tabloid headlines can be trusted?
Are you at risk of being a victim of crime? How does your perception of that risk compare with the facts and figures?
Can you explain what is going on in these puzzling number tricks?
Where should you start, if you want to finish back where you started?
How many different differences can you make?
Can you figure out how sequences of number shacks are generated?
Can you solve the clues to find out who's who on the friendship graph?
How can you decide if a graph is traversable?
Can you find a way to connect each house to the utilities without any pipes crossing?