QI - a selection of quite interesting (and downright amazing) things;Presenting an amazing optical illusion and a seemingly impossible puzzle;Identical rectangle illusion - with inter-changeable rectangles;Final piece puzzle - 6 pieces plus the final piece;Astonish your friends and family

• Wow Stuff QI Box Of Stuff Puzzles and Illusions

Wow Stuff QI Box Of Stuff Puzzles and IllusionsWow Stuff