Miscellaneous Puzzles

• PeterPuzzle - Website of puzzle designer Peter Grabarchuk.
• Puzzles of Leonid Mochalov - Website of the Russian inventor of puzzles and author of books.
• Pentomino - Pentomino information, problems, and exercises.
• Sam Loyd - Info about Sam Loyd and his puzzles. Download his "Cyclopedia of 5000 Puzzles".
• Web Riddle - Get to progressively more difficult levels through URL manipulation.
• AgeOfPuzzles.com - Interactive and printable puzzles, plus lots of puzzle links and resources.
• Nick's Mathematical Puzzles - Math puzzles with hints, answers, and fully worked solutions.
• pzzls - Logic puzzles, puzzling riddles and math puzzles.
• Number Logic - Free daily Sudoku puzzles. Play online or print them.
• Terry Stickels.com - Official website of puzzle author and speaker Terry Stickels.
• Aha! Puzzles - Original creative puzzles, books, and tests designed by Lloyd King.
• Barry R. Clarke - Liar problems, number conundrums, matchstick puzzles, lateral mind-benders.
• MysteryPhotos.com - Identify the objects in the photos and win weekly prizes.
• Braingle - User submitted and ranked brain teaser, mind puzzles and riddles.
• The Contest Center - Puzzles, Riddles, and Contests for cash.
• IQ Test - IQ, Aptitude & Personality Tests.
• curiouser.co.uk - Paradoxes, puzzles, games, illusions, poetry, curious facts, quotations.
• Puzzles.com - A great resource for Puzzles, Illusions, Tricks, and other Fun on the internet.
• Free Puzzles - Lots of puzzles: Logic, Math, Weight, Moves, Geometry...
• Mathpuzzle.com - Ed Pegg Jr's wonderful site full of math puzzles and mathematical recreations.
• Lateral Puzzles - A forum for fans of lateral thinking puzzles.
• Puzz.com - IQ tests, puzzles, games, trivia, freebies, & contests for prizes.
• BrainBashers - A matabooboo of logic puzzles, math puzzles, language puzzles and paradoxes.
• Archimedes' Laboratory - Hands-on thinking games which help teach mathematical applications.
• thinks.com - Brain games. Free online daily jigsaw, crossword, and word search puzzles.
• The Ultimate Puzzle Site - Basic & Math Puzzles, Brain-Teasers, Complex Problems.