| Main centres: | 1-3 business days |
| Regional areas: | 3-4 business days |
| Remote areas: | 3-5 business days |

This item is sold brand new. It is ordered on demand from our supplier and is usually dispatched within 10 - 15 working days
| Summary | Contains more than 500 puzzles designed not only to challenge puzzle-solving abilities, but also to increase levels of self-knowledge and logical thinking. |
| Author | Mensa Ltd |
| Publisher | Welbeck Publishing Group |
| Release date | 20191228 |
| Pages | 400 |
| ISBN | 1-78739-386-0 |
| ISBN 13 | 978-1-78739-386-8 |