Are you a GENIUS? Find out with a few of the most fiendish brain-teasers ever (Mail)
‘Are You Really A Genius?’ by Robert Streeter and Robert Hoehn was first published in the 1930s. It is re-published by the University of Chicago Press.
Did well? Have you considered joining British Mensa? Here’s the Mail’s quiz to see if you could join the cleverest brains in the world (or Mensa).