Brain Teasers
Cryptograms, Mathematical, Nonograms, Optical Illusions, Riddles, A Game A Day, A Puzzlemakers Site, Able2Know, Abnorm's Conundrums, All-Star Puzzles: Logic Problems, Alphabet Cartoon Puzzles, Analytical Puzzles, Archimedes' Laboratory, AVAV, Bill's Brain Teasers
Crosswords
Acrostic, Books and Magazines, Chats and Forums, Contests, Creation Software, Cryptic, Custom Puzzle Services, Solving Tools, About.com Crossword Puzzles, Aquarium Fish Crosswords, Australian Crossword Club Site, Beat the Champ, Brian Jacques: Redwall Crossword Puzzles, Canopia Crosswords, ClueMaster, Crossword Puzzle Games, Crossword Puzzles, Crossword Puzzles and Blokkiesraaisels
Jigsaw
Manufacturers, Free Daily Jigsaw Puzzle, Jigsaw Puzzle Tournament.us, Jigsaw Puzzles and Games, John's Jigsaw Puzzle Page, Springbok Jigsaw Puzzles, Top puzzles
Mazes
Outdoors, Amazeing Art, Amazing Stuff, Andrew Bernhardt's Mazes, Astronaut Mazes, Bills Games, Blackdog Maze-O-Rama, Chris Nevison, Click Mazes, Great Mazes, Javascript Maze Maker
Mechanical
Rube Goldberg Machines, Rubik, Wooden, Brain Binders, Brass Puzzles by Rocky, Hockey Puck Puzzle, Impossible Bottles, Livewire Puzzles, Meffert's World of Puzzles, Parlor Puzzles, Potty Puzzles, Puzzle & Craft Factory, Puzzle People Page
Self-Referential Sentences
Gallery of Mathematics / Self-referential Sentence, Self-Referential Sentences, Solve my base three numerical self-referential sen
Word Search
Puzzle Creation, ABC Toon Center, All-Star Puzzles' Word Searches, Amazing Angels, Anagramania Word Search Puzzles, Bambam's puzzles!, Bible Word Search, BlackDog's Word Search Games, Blurbz, Braingle Word Search Puzzles, Clicket's Community
Adventure Puzzles
Serial adventures, continuing story and puzzles building towards a final puzzle and solution.
Holiday Puzzles
Collection of original puzzles developed over the years to celebrate the winter holidays.
Logicville
Educational puzzles, brain teasers, mathematical recreations and word games. A resource for anagrams, cryptograms, alphametics, word puzzles, logic problems, doublets, tangrams, chess, and math quizzes.
Perplexing Problems
Logic problems submitted by users in categories including mathematics, words, and mysteries.
Puzzle Choice
Crosswords, wordsearches, cryptograms, quizzes, wordplay and other interactive and printable puzzles and games.
Puzzle Space
Information about language and culture independent puzzles and logic games.
Puzzletome
Contests of varying difficulty and types. Also has tutorials with worked examples and practice games. [Registration required]
Rainier Beer Bottlecap Puzzles
The answers to the bottlecap rebus style puzzles found on Rainier Beer and Pearl Beer caps.
Rec.puzzles Archive Locations
Directory of archive locations for North America, Europe and Asia.
The Puppeteer's Cosmic Puzzle
Pictographic puzzle microcosm of old and new playing cards, poems, games and lore. New suits: the zodiac, solar system, evolution, human family, ancient elements, astronomical basis of the calendar and compass.
The Puzzle Page
Collection of puzzles, brain teasers, mind benders, logic problems, cryptograms, patterns, and enigmas.
The Substitute Teacher: Puzzles and other Diversio
Printable puzzles and other diversions to help substitute teachers involve their temporary students in mind stretching activities.
Tim's World of Puzzles
Information on World Puzzle Championships including links to sample word and logic puzzles.
Variety Games
Shareware software programs available to create custom crossword and word searches.
VNC: Volker-Noelle.com
Collection of brain teasers, logic puzzles, paradoxes and mathematical riddles.