Test your grey matter with this Ultimate IQ set of 3 Wooden Puzzles from Professor Puzzle. This little trio will require patience & skill. Work through the three levels to master them all! The aim is to separate each of the 3 puzzles, then rebuild them. Easy? Difficult? You decide. An IQ Challenge Booklet with 25 extra challenges is included inside. Can you complete them all within the 30 minute time limit?! A solution sheet is also included if you don't master the puzzles & the whole venture is driving you to frustration.