If you relish a challenging mental workout, these brain teasers will demand your very best solving skills. The structure of each Mindset is the same: 3 questions, first a word puzzle, then a numerical puzzle, and a third which is shorter and easier than the first two.

Written by Chris Pringle, Colin Whorlow and Daniel Shiu.

But do not worry, solutions are found at the back of the book so you can get into the head of these fiendish setters and work out their devilish methods!

We have included a useful Appendix at the end to help as an aide-mémoire for some recurring themes.

These tricky teasers require serious application, imagination and skill to solve. Some demand a logical approach, others a methodical, mathematical mind, or a leap of the imagination!

Do you have the right Mindset to take on the challenge of solving these rigorous but entertaining word, logic and number puzzles?