Our Blog latest news and updates


Trefoil puzzle #169: A frog and a well

Freddie is a very clumsy frog.
Freddie falls to the bottom of a well which is 30m deep.
Every day, Freddie works really hard to climb up the well and climbs 3m.
Every night, Freddie slips down 1m.
How many days would it take Freddie to escape from the well?

Once you’ve solved the puzzle, send us your answer on Facebook – we look forward to hearing from you!