| 1. A Game A Day |
| A puzzle site featuring a new puzzle format each weekday for each month. Puzzles are fun, educational, entertaining and are also printable. |
| http://www.agameaday.com |
| 2. A Puzzlemakers Site |
| Puzzles of all descriptions. |
| http://www.puzzlemakers.net |
| 3. AVAV |
| Collection of optical illusions, brain teasers and riddles. |
| http://www.askix.com/avav/ |
| 4. Able2Know |
| Message board of user submitted riddles and brain teasers. |
| http://able2know.com/forums/viewforum.php?f=8 |
| 5. Abnorm's Conundrums |
| Easy, medium and difficult brain teasers without answers. |
| http://www.angelfire.com/oh/abnorm/ |
| 6. All-Star Puzzles: Logic Problems |
| Collection of logic problems to solve. Printable. |
| http://www.allstarpuzzles.com/logic/ |
| 7. Archimedes' Laboratory |
| Recreational mathematics including puzzles to make and solve, tessellations, geometric puzzles, optical illusions, and curiosities. |
| http://www.archimedes-lab.org |
| 8. Bill's Brain Teasers |
| A collection of visual and linguistic riddles. |
| http://www.billsgames.com/brain-teasers/ |
| 9. Brain Juice |
| An assortment of entertaining logic puzzles with solutions and indicated levels of difficulties. |
| http://www.brainj.net/puzzleindex.php |
| 10. Brain Teaser World |
| Offers riddles, puzzles, optical illusions, and magic tricks. |
| http://www.brainteaser-world.com/ |
| 11. Brain Teasers |
| Brain teasers, riddles, logic puzzles and problems, paradoxes, optical illusions, IQ tests and logical games. |
| http://brainden.com/ |
| 12. BrainBall |
| A daily brain puzzle with 10 different tasks and a variety of statistics on your performance. |
| http://brainball.playwithyourmind.com/ |
| 13. BrainBashers |
| Brain teasers, puzzles, riddles, games and optical illusions. |
| http://www.brainbashers.com/ |
| 14. BrainBoggled.com |
| A collection of math, logic, and word puzzles. |
| http://www.brainboggled.com/ |
| 15. BrainVista |
| Collection of solved and unsolved brain teasers. |
| http://www.brainvista.com |
| 16. Braingle - Brain Teasers & Riddles |
| Includes a huge collection of user submitted and rated brain teasers and riddles. It also has a lively message board and some unique multiplayer games. |
| http://www.braingle.com/ |
| 17. Confusion |
| It's a challenge to reach the end of this puzzle maze. |
| http://cnfsn.tripod.com/ |
| 18. Curiouser.co.uk |
| Paradoxes, puzzles, games, optical illusions, poetry, curious facts, and quotations. |
| http://www.curiouser.co.uk |
| 19. Eluzions |
| Featuring all sorts of games, optical illusions, puzzles, trivia, mazes, and magic tricks. Suitable for all ages. |
| http://eluzions.com/ |
| 20. Eyetricks: Brain Teasers |
| Weekly puzzles and archives. |
| http://www.eyetricks.com/brainteasers/ |
| 21. Gray Watson's Brain Teasers and Riddles |
| A collection of brain teasers and riddles with a guess button. |
| http://256.com/gray/teasers/ |
| 22. Had To Play On |
| A community based site with competitions, challenges, awards, a help centre, forums and games. |
| http://www.hadtoplayon.com |
| 23. Just Riddles and More |
| Riddles, illusions, puzzles, and brain teasers. |
| http://www.justriddlesandmore.com |
|
| 24. National Puzzlers' League |
| Crosswords and other word puzzles and games, samples; monthly puzzle magazine; 800,000 word searchable list. |
| http://www.puzzlers.org/ |
| 25. PedagoNet Brainers |
| Over 60 brain teasers to enhance your mind. |
| http://www.pedagonet.com/brain/brainers.html |
| 26. Planetarium |
| An on-line puzzle story in twelve weekly installments. |
| http://www.beholder.co.uk/planetarium |
| 27. Professor Tangent |
| Have fun with games, puzzles, brainteasers and humor as you learn about logic and analysis. |
| http://www.professortangent.org |
| 28. Puzzability |
| Some real mind benders here. |
| http://www.puzzability.com/ |
| 29. Puzzle Contest Center |
| Riddles, brainteasers, cryptograms, anagrams, and logic puzzles. Compete in eight new contests monthly. |
| http://www.contestcen.com/ |
| 30. Puzzles Without Rules |
| Free, updated, original abstract puzzles for advanced puzzle-solvers. Includes current unsolved puzzle and archive with hints and solutions. |
| http://puzzleswithoutrules.blogspot.com/ |
| 31. Pzzls |
| A collection of logic puzzles, riddles and brain teasers. |
| http://www.pzzls.com |
| 32. Rec.puzzles Archive |
| An archive of many popular puzzles from the rec.puzzles newsgroup. |
| http://rec-puzzles.org/ |
| 33. Roh'El's Riddles |
| Offers brainteasers rated by difficulty and category. |
| http://users.telenet.be/jo.roel/Riddles/index... |
| 34. Say What You See! |
| Collection of visual brain teasers which can be solved by saying what you see. |
| http://www.eyetricks.com/swys/swys0101.htm |
| 35. Sesquip Word Games |
| Challenging word games published in newspapers. |
| http://www.sesquip.com |
| 36. The Amazing Art Site |
| Huge collection of optical illusions, hidden imagery, ambiguous art and upside downs. |
| http://members.lycos.nl/amazingart/ |
| 37. The Grey Labyrinth |
| A beautifully illustrated collection of puzzles, riddles, and paradoxes. Features a changing "unsolved puzzle" plus three years worth of previous puzzles. |
| http://www.greylabyrinth.com/ |
| 38. The Logic Zone |
| Collection of problems with answers, logic puzzles and cryptograms. |
| http://myweb.tiscali.co.uk/thelogiczone/ |
| 39. The Stone |
| an online mystery game. Hours of clever puzzles and riddles. Puzzles challenge the mind of serious and amateur players worldwide. |
| http://www.thestone.com |
| 40. Thinking Game Forums |
| Chat and discussion about online thinking games. |
| http://www.infordigital.com/ |
| 41. Thinks.com |
| Recreations for active minds including games, puzzles, math, words, images, books, software and web guide. |
| http://www.thinks.com/ |
| 42. Word Juxtapoz |
| Word puzzles, riddles, rebuses, brain teasers, mazes, cliparts and pictures. |
| http://www.wordjuxtapoz.com/ |
| 43. Zuzzle Puzzles |
| Collection of puzzles including riddles, logic puzzles and sequential puzzles. |
| http://www.zuzzle.com/ |
| 44. iRIDDLER |
| Challenge your mind with free online riddles/puzzles, logic games, brain teasers and view optical illusions. |
| http://www.iriddler.com |
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