Dr Gareth Moore is on the board of the World Puzzle Federation, and is the author of a wide range of brain-training and puzzle books for both children and adults, including The Mammoth Book of Brain Games, The Brain Workout, The Mammoth Book of New Sudoku and The Rough Guide Book of Brain Training.
A collection of challenges from throughout history, featuring some of the greatest ever puzzle masters.A Sumerian Riddle (circa 18th Century)There is a house. The blind enter it and then come out seeing. What is that house? A CharadeI have wings, yet never fly - I have sails, yet never go - I cant keep still, if I try,Yet forever stand just so.