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				Mechanical puzzles, optical illusions, mazes, tessellations, and paradoxical games. ... consider becoming a fan of Archimedes' Lab on Facebook to get updates about ...			 
				
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					Offers a variety of online jigsaw puzzles online. Choose your difficulty level and ask for helpful tips if you get stuck.				 
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					puzzlersparadise provides perplexing problems for puzzle lovers of all ages - Gaming Recreation ... PuzzlersParadise welcomes you to delight in our collection ...				 
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					User submitted and ranked brain teasers, riddles, quizzes, trivia, logic ... Braingle.com. Sign In Create a free account. Username: Password: Forgot? Remember me ...				 
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					A series of challenging mathematical/computer programming problems that will require more than just mathematical insights to solve.				 
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					Welcome to ArmoredPenguin.com. This site contains a number of resources that various people (including educators and students) can use to make ...				 
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					Offers both current and archived crossword puzzles.				 
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					Action packed math site for elementary and middle school students featuring math games, ... Copyright © 2008 - 2012 MathPlayground.com All rights reserved. ...				 
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					Puzzles include word searches, logic problems, crostics, picture puzzles, cryptograms, and more.				 
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