List is sorted by rating
Rating (?)
Tweets (*)
pr *
  • Braingle
  • www.braingle.com
  • Includes a huge collection of user submitted and rated brain teasers and riddles. It also has a message board and some unique multi-player games.
5.0
(7)
>190
4
  • BrainBashers
  • www.brainbashers.com
  • Brain teasers, puzzles, riddles, games and optical illusions.
4.2
(si*)
>30
5
  • Brain Teasers
  • brainden.com
  • Brain teasers, riddles, logic puzzles and problems, paradoxes, optical illusions, IQ tests and logical games.
4.2
(si*)
>420
4
  • Archimedes' Laboratory
  • www.archimedes-lab.org
  • Recreational mathematics including puzzles to make and solve, tessellations, geometric puzzles, optical illusions, and curiosities.
4.0
(1)
>10
5
  • National Puzzlers' League
  • www.puzzlers.org
  • Crosswords and other word puzzles and games, samples; monthly puzzle magazine; 800,000 word searchable list.
3.8
(si*)
<5
5
  • Just Riddles and More
  • www.justriddlesandmore.com
  • Riddles, trivia, illusions, puzzles, and brain teasers.
3.8
(si*)
<10
4
  • The Grey Labyrinth
  • www.greylabyrinth.com
  • A beautifully illustrated collection of puzzles, riddles, and paradoxes. Features a changing "unsolved puzzle" plus three years worth of previous puzzles.
3.8
(si*)
<5
5
  • Had To Play On
  • www.hadtoplayon.com
  • A community based site with competitions, challenges, awards, a help centre, forums and games.
3.8
(si*)
<5
3
  • Thinks.com
  • www.thinks.com
  • Recreations for active minds including games, puzzles, math, words, images, books, software and web guide.
3.7
(si*)
>20
5
  • Puzzability
  • www.puzzability.com
  • Some real mind benders here.
3.7
(si*)
-
5
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