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Try your hand at 100 of the most difficult acrostic puzzles ever created. These mind-benders are witty, chock-full of clues and, unlike other puzzles, cannot be solved alone. Answers cover the world of knowledge: history, geography, science, literature -- you name it Figuring out the puzzles will call for you to look up definitions, locate the author of quotations, decipher wordplays and rhymes -- and those are just the easy ones. The key to unriddling the Uprights can be found in the Lights. Here is where the combined clues come together to help you solve the acrostic. You won't be cheating if you surround yourself with mounds of reference books. Here is an example: Uprights -- Table Tennis Light 1: The Father Of Alexander The Great Light 2: Othello's Ancient Light 3: The Discoverer Of The Laws Of Gravitation Light 4: A Substitute For The Dinner BellThe first and last letters of the Lights give you the Uprights: P...P, I...0, N...N, and G...G, Ping-Pong a synonym for table tennis. Alexander's father was Philip, Othello's ancient is Iago, Newton was the discoverer of the laws of gravitation, and the dinner bell substitute is a gong. Easy, huh? Wait until the literary allusions become obscure, the phrasing ambiguous, and the choice of synonyms complicated. That's when the real fun begins