Every year, Mensa hosts the Brain of Mensa event - a gruelling knockout competition to root out the smartest quizzers - many enter, but only one remains standing to claim the title. Finally find out if you have what it takes to go up against the best of them - and maybe next year you will be competing to become the next 'Brain of Mensa'.
A compilation of the questions in the yearly Mensa competitions, readers can work their way through 1,500 mind-boggling puzzles to see how they fair against the best brains in Britain.