Here is an irresistibly addictive book for anyone whose juices flow when presented with a baffling puzzle. This fiendishly clever book pits readers' wits and deductive powers against a dizzying array of word problems, questions, riddles, and graphic brainteasers, all devised (if you dare to believe) by aliens who have arrived to assess our intelligence in such far-flung areas of the human mind as abstract reasoning, mathematics, religion, morality, and humanity's concepts of beauty.