If you're in to puzzles, riddles, and other mind games, here's a collection of teasers guaranteed to keep you up longer than you wanted:
Pzzls
From simple riddles and puzzles, the site has lots of logic, math, and science puzzles to keep your brain on overdrive. You can browse through the puzzles or use the search tool.
Think Riddles
With 8000 brain teasers and riddles to choose from, you can really put your brain in a tizzy. So check out the popular riddles first. You can also go at them alphabetically with the letter links at the foot of the web page.
Mind Cipher
Mind cipher does not have a large number of puzzles, but the limited collection is arranged in neat categories. Two categories you should try out first are – Lateral Thinking and Logical. Answers along with detailed explanations are given for most of the riddles.
Brain Bashers
Brain Bashers is a collection of brain teasers, puzzles, riddles, games and optical illusions. Brain Bashers has thousands of puzzles and brain teasers, and with new material added every single day, including games and optical illusions, you can be sure there is always something to do. With over one hundred awards, Brain Bashers is the place to spend a boring Friday afternoon training your brain.
Braingle
If your brain craves for variety, give it Braingle’s mix of quizzes, riddles, logic problems, and trivia. Try out the Puzzle Hunts on the site which is like a treasure hunt for the brain. There are only two as of now with ten levels each, but the site also links to others that may be found online.
Finally,....
A free dowload called Brain Workshop. The site says it's guaranteed to make you smarter. Spend the summer using Brain Workshop and go directly to High School.
Have Fun.....
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