Quick view Add to Cart Mensa's Most Difficult IQ Puzzles : Take on the ultimate challenge by solving these demanding conundrums £13.63 Welbeck Publishing Group
Quick view Add to Cart Mensa's Most Difficult Number Puzzles : Prove your logical and numerical abilities against 200 fiendish problems £13.63 Welbeck Publishing Group
Quick view Add to Cart Mensa'S Most Difficult Geometric Puzzles: Tricky Puzzles To Challenge Every Angle £13.63 Welbeck Publishing Group
Quick view Add to Cart Mensa'S Most Difficult Maths Tests: Prove Your Arithmetic Prowess By Solving The Toughest Numerical Puzzles £13.63 Welbeck Publishing Group