If you relish a serious mental workout, this collection of 100 brain teasers will demand your very best lateral thinking skills and mathematical rigour to solve. These puzzles will amuse and perplex in equal measure.
The book, Sunday Times Teasers Book 2 (9780008617967) [Order Bulk Books, Wholesale, Quantity Discount] with ISBN# 9780008617967 in by may be ordered bulk quantities. Minimum orders start at copies.