Get your brain cells at the ready! Can you solve these fiendishly difficult little puzzles? These wooden puzzles will test you to the very limit! This collection of brilliantly tricky wooden puzzles brings together some of the best brain teasers ever invented by some of the most famous men in science! The Classic Set of Three Wooden Puzzles range from fiendishly hard to terrifically difficult! Up for the challenge of solving all of them? Then give it a go! Suitable for ages 6+.