So you think you have the brain-power to tackle tough logic puzzles? Well, try this extraordinary assortment of challenges, including Mix-and-Match logic puzzles and Find-the-Liar type brain-teasers. Some puzzles have tables that can be used to deduce relationships between people or items. Some use wordplay to present the problem. Others use illustrations to highlight the challenge. Whatever their form, each is designed to stretch your mind to the maximum.