Test your IQ is a demanding assessment of your intelligence, created by the experts at Mensa and presented as 400 questions across 20 IQ test-style challenges, increasing in difficulty as you progress.Pattern recognition, numerical challenges, lexical problems, logic puzzles and more are included to help test and refine your brainpower, with details on how to analyse your results and tips on how to achieve the best score you can.. 20 IQ tests from the masters of intelligence . 400 Questions. Number of Books: 1. Format: Paperback. Approximate package dimensions (mm) H237 W186 D20. Package weight 0.678 kg*Please note that this product is delivered direct from our supplier and may take a little longer to arrive