- A Gadzillion Things To Think About
Thousands of humourous questions to encourage creative thought in all age groups.
- Brain Teasers Central
Brain teasers, cool optical illusions, riddles and other cool stuff!
- Brain Teasers For Kids
Dozens of printable brainteasers for children. Includes word games, riddles, and math puzzlers.
- Brainden - Brain Teasers
A site full of brain teasers.
- Braingle - Brain Teasers & Riddles
Tangles the brain with user submitted and user ranked brain teasers, mind puzzles and riddles.
Home of the Paradoxical. Features a selection of paradoxical puzzles, tricks, illusions, games, poems, quotations and more. 9 out of 10 respondents say curiouser.co.uk is the curiousest.
- Eduplace - Brain Teasers
Brainteasers for kids and adults.
- Puzzle Grail
A very colorful and flashy family-oriented website begins your journey into a nostalgic viewing of (300+) 3D mechanical brainteasers that you may have come across from years long past, working your way up to a wide spectrum of contemporary puzzles, with a special-page viewing ("My Creations") of all the conundrums I've created from old designs.
- Puzzle Master
Puzzle Master has a large and unique collection of wire and wood brain teasers. In addition to this they also carry specialty jigsaws and chess sets.
- Smartest Games
Play and get smarter.
- Willywalnut - Brain Teasers
Mystery Photos Brain Teasers.