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Paradoxical  puzzles, tricks, illusions, games, poems, quotations and more. 
9 out of 10 respondents say is the curiousest. is always happy to reciprocate links.

Scientific American is everything you would expect it to be - fascinating and informative.

Stanford Encyclopedia of Philosophy

Illusion Works features many different optical illusions.

CSIOP The Committee for the Scientific Investigation of Claims of the Paranormal encourages the critical investigation of paranormal and fringe-science claims from a responsible, scientific point of view and disseminates factual information about the results of such inquiries to the scientific community and the public.

Darwin Awards Nothing to do with paradoxes or illusion but very funny. It celebrates Charles Darwin's theory of evolution by commemorating the remains of those who have contributed to the improvement of our gene pool by removing themselves from it.

Turntable Illusions catalogues many sites featuring optical illusions.

Links to Optical illusions Web Resources

Brain teasers by Barry R. Clarke Selected, original puzzles from Barry's column in The Daily Telegraph (UK).

Livewire Puzzles

Free Puzzles conversion and calculations like meters to feet, celsius to fahrenheit and many more.

Aha! Puzzles Fun, new, creative lateral thinking puzzles with "Aha!" answers designed by puzzle book author Lloyd King

Puzzle Master This site has been created by Chris Maslanka. Chris writes a puzzle column in the Guardian newspaper (UK) and presents "Puzzle Panel" on BBC Radio 4.

Fundrum have written a book of puzzles and riddles designed to challenge the way you think. Remove all assumtions and have a look.

Logic Assistant Your free electronic puzzle magazine, delivered direct to your PC via eMail. Subscribe today !

Eluzions : Online Games, Optical Illusions, and Puzzles. A colorful and entertaining site featuring all sorts of games, optical art and illusions, puzzles, quizzes and trivia, mazes and labyrinths, magic tricks, and more. Suitable for all ages.

PUZZLEMAKERS PUZZLES Puzzlemakers supplies puzzles of all descriptions at all levels of difficulty to both trade and public. Visit the site to see the vast range of samples. Thousands of puzzles, plus puzzle contests with cash prizes.

Braingle User submitted and ranked brain teasers, mind puzzles and riddles

Puzzle Master Puzzle Master is a Canadian manufacturer of wire disentanglement puzzles (brain teasers).

BrainBashers: Brain Teasers and Games

Mind Bluff Puzzles and Illusions.

Archimedes' Lab puzzle site

Funny Friendship Greeting Cards From Ever wondered why Friends and Fun both start with the letter 'F' ? Well, I guess the answer is you can't have one without the other. So click a fun message & bring a big smile to your friend's face with our hilarious ecards and go LOL. - IQ & Personality Tests "Check out our range of PhD certified Personality, IQ, Aptitude & other Self-Assessment Tests. We also have loads of other fun tests that you would love."

A1 Puzzles and Crosswords Interactive Crosswords and Puzzles

Bruno's Chess Problem Of The Day: Like chess? Well, everyday you will find here new free chess problems. Looking for logic puzzles, free chess strategies or tactics? Come on!

Figures Ambigues Ambiguous and impossible figures: ambiguous photos, equivocal french, texts, ambiguous comics, famous paintings etc.

BRAINTEASERS Brainteasers, paradoxes, optical illusions, logical games and IQ tests.

Free Addicting Games Choose from over 1000 games to play out of 14 categories like Shooting Games, Car Racing Games,Fighting Games,Adventure Games, Flash Movies, and many more. is a puzzle site associated with a visual search site. The flash-based word puzzles are updated daily and are inspired by the classic Robert A. Heinlein science fiction novel, Stranger in a Strange Land, in which Grok is a Martian word meaning literally to drink and metaphorically to be one with. To grok something is to look at every problem, opportunity, action, and point of view from any and all perspectives so that it is fully understood. The puzzles reflect this idea by presenting a series of clues that are related to the subject of the puzzle. A collection of logic puzzles, riddles and brain teasers

Free Card Games Galore
Free card game galore provides you with a list of free card games for people of all ages, which are free to try and completely safe.

Franz Kiekeben's Paradoxes
An interesting selection of paradoxes.

A Crafty Puzzle Company
Handmade Teak Wood Collapsible Puzzles for the whole family, which will test your IQ and lateral thinking

The Very Original Picture Puzzle

Puzzlr - Word Puzzles

Crosscan Puzzles
A website featuring a puzzle called Crosscan, a challenging combination of crossword and word search.

brain training
A fast growing UK games community with trivia, puzzles and brain games constantly added and updated. You can play individually for brain training fun or compete against other real people in multiplayer cash jackpot games.

Puzzle Games
A collection of free online puzzle games.

IQ Test
Have queries about IQ, IQ Tests, IQ Scores? Want to know if you are a Genius or what it takes to be a Genius? Get all your queries answered here on

IQ Test UK
Online IQ tests

Puzzle Master has a large and unique collection of brain teasers; puzzles for sale. In addition they also carry chess,mechanical banks, puzzle books, magic trick books, boomerangs, etc.

KS3 quizzes for 11 to 14 year olds.
KS3 quizzes for all the main curriculum subjects including maths, english and science.

Best Android Puzzle Games - Cool Android puzzle app of thinking games, brain teasers, logic problems, and edutainment games.

Best for Puzzles - for Puzzles, Games and Pastimes - free daily crosswords, codewords, sudoku, word searches, jigsaws, and heaps more puzzles, games and trivia.

World of CryptoPics - Nonograms/Griddlers site with information, tutorial, puzzles to print and downloadable software.

Solitaire Games. Many genuine, connect, classic, unusual Mahjong games to play online and more at Word game solvers and creativity tools.

Passion for Puzzles Blog is a fantastic site for all kinds of puzzles. You can find solutions for brain teasers. There is also a great section for online games and another section for daily online activities like crosswords, sudoku, word search etc. Optical illusion blog updated each every week with new illusions, pictures and videos.

Children’s science projects Science projects and science experiments for kid’s grades 1 to 8 that is safe and fun to do. Various e-books range containing full step by step instructions.

Puzzles And Riddles Free puzzles, riddles, brainteasers, lateral thinking problems, spot the difference pictures, advanced puzzles for geeks and brainiacs, and more.

Online Jigsaw Puzzles Free online jigsaw puzzles to play, free daily Jigsaw puzzle game, from 9 to large 225 pieces jigsaw puzzles, for adults, kids and more. Free online fun, quizzes and general knowlegde quiz questions and answers

Other sites by the designer of

Elena Dearden - Russian Translator and Interpreter
stranger and stranger by Robert McMullen
A Stiff-Necked Generation by A. Wyatt Tilby
The Victory Players Balcombe
BCP Groundworks Ltd
Photos for ME Research

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