- 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.
- A Puzzlemakers Site
Puzzles of all descriptions.
- Able2Know
Message board of user submited riddles and brain teasers.
- Abnorm's Conundrums
Easy, medium and difficult brain teasers without answers.
- All-Star Puzzles: Logic Problems
Collection of logic problems to solve. Printable.
- Archimedes' Laboratory
Recreational mathematics including puzzles to make and solve, tessellations, geometric puzzles, optical illusions, and curiosities.
- Bill's Brain Teasers
A collection of visual and linguistic riddles.
- Brain Juice
An assortment of entertaining logic puzzles with solutions and indicated levels of difficulties.
- Braingle - Brain Teasers & Riddles
Tangles the brain with user submitted and user ranked brain teasers, mind puzzles and riddles.
- BrainVista
Collection of solved and unsolved brain teasers.
- ButlerWeb
A page of about 30 brain teasers. Answers are hidden in drop down screens.
- Confusion
Its a challenge to reach the end of this puzzle maze.
- Curiouser.co.uk
Paradoxes, puzzles, games, optical illusions, poetry, curious facts, and quotations.
- Eli's Math and Logic Puzzles
Collection of math and logic puzzles.
- Eluzions
Featuring all sorts of games, optical illusions, puzzles, trivia, mazes, and magic tricks. Suitable for all ages.
- iRIDDLER
Challenge your mind with free online riddles/puzzles, logic games, brain teasers and view optical illusions.
- Just Riddles and More
Riddles, illusions, puzzles, and brain teasers.
- Logic Puzzles by Borborygmus
The devious logic puzzles by Borborygmus, published every Saturday by The Press, Christchurch, New Zealand.
- National Puzzlers' League
Crosswords & other word puzzles and games, samples; monthly puzzle magazine; 800,000 word searchable list.
- Nonogram Solver
Information about Nonogram logic puzzles and how to solve them, plus examples of two on-line solvers, software, and links.
- Online Adlibs
This is a silly word puzzle riddle that you make up, with your own words.
- Pastelina
Site containing a number of logic puzzle games created in Flash.
- Peculiar
Brain teasers, problems, mathematical mind mazes, questions and optical illusions.
- PedagoNet Brainers
Over 60 brain teasers to enhance your mind
- Planetarium
An on-line puzzle story in twelve weekly installments.
- Professor Tangent
Have fun with games, puzzles, brainteasers and humor as you learn about logic and analysis.
- Purple Hunt
A fun site for puzzles, free games, treasure hunts, cryptograms and intrigues. Prizes for winners.
- Puzzability
Some real mind benders here
- Puzzle Contest Center
Riddles, brainteasers, cryptograms, anagrams, and logic puzzles. Compete in eight new contests monthly.
- Puzzles on Seniority
Riddles, mind benders and puzzles for seniors (aged 50 or above).
- Rec.puzzles Archive
An archive of many popular puzzles from the rec.puzzles newsgroup.
- Riddle Me This
Mystery stories - Collection of riddles, with clues given on separate days.
- Say What You See!
Collection of visual brain teasers which can be solved by saying what you see.
- Sesquip Word Games
Challenging word games published in newspapers.
- Ten Teasers
Some of these brain-teasers need some thinking, others need no thinking at all.
- The Amazing Art Site
Huge collection of optical illusions, hidden imagery, ambiguous art and upside downs.
- The Grey Labyrinth
A beautifully illustrated collection of puzzles, riddles, and paradoxes. Features a changing "unsolved puzzle" plus three years worth of previous puzzles.
- The Puzzle Meisters
Features puzzles and mysterious enigmas along with a few trivia questions here and there.
- The Stone
an online mystery game. Hours of clever puzzles and riddles. Puzzles challenge the mind of serious and amateur players worldwide.
- The Ultimate Thinking Puzzler
Discover who killed Ronald Opus in this contorted thinking puzzle.
- Unitix Entertainment
Online games, puzzles and other interactive brainteasers. Fun for all ages.
- Wordles!
Get free cryptograms, create your own, and look up crossword puzzle words.
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