Puzzles, Games, Brain Stretchers

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Free practice tests, interview questions, driving test, SAT practice test, create your own quiz - Skill-Guru
Explore math Use interactive apps to explore math and get a better understanding of what it all means. Go ahead - play and learn!

Interactive Mathematics - Learn math while you play with it!

Interactive Mathematics - Learn math while you play with it!
The Puzzler
The Puzzle Welcome to this little game of mine. The instructions are quite simple: Using clues scattered throughout each level, one must figure out which page to go to next. For example, if the answer were "green", then one would change the address to http://hdwhite.org/puzzle/green.html (and no, that is not the answer). This may seem easy, but you may soon find yourself stuck. But don't give up. Go to One.html Go to One.html
Gimme Friction Baby - Free Puzzle and Board Game from AddictingGames!


"There is another world, but it's inside this one" -Paul ?uard Do the Celestial Crawl On a cloudless warm night, walk around until you can put a nearby building or tree very close to a bright star in the eastern sky. Now lay on the ground and move yourself until the corner of the building or the top of the tree just BARELY covers that star.
Skilled at visual learning? Measure your musical-visual intelligence online! While working at the music and neuroimaging lab at Beth Israel/Harvard Medical School in Boston, I developed a quick online way to screen for the tonedeafness. It actually turned out to be a pretty good test to check for overall pitch perception ability. The test is purposefully made very hard, so excellent musicians rarely score above 80% correct. Give it a try!

Skilled at visual learning? Measure your musical-visual intelligence online!

Letterboxing North America
Pauker is a completely free (OpenSource, GPL) flash card based, learning application written in «Java» using the leitner cardfile system available in Dutch, English, Esperanto, German, French, Polish, Spanish, Slovak and Vietnamese works offline without the need of an internet connection and is compatible with MiniPauker, a Pauker version for PDA's and mobile phones. Pauker uses a combination of ultra-shortterm, shortterm, and longterm memory. You can use it to learn all the things efficiently you never want to forget, like vocabulary, capitals, important dates, etc. Pauker::Home Pauker::Home
Parley - Vocabulary Trainer Parley - Vocabulary Trainer Parley is a program to help you memorize things. Parley supports many language specific features but can be used for other learning tasks just as well. It uses the spaced repetition learning method, also known as flash cards. Creating new vocabulary collections with Parley is easy, but of course it is even better if you can use some of our premade files. Have a look at the KDE-Files.org page or use the "Download New Collections" feature directly in Parley. Features
The Mnemosyne Project has two aspects: It's a free flash-card tool which optimizes your learning process.It's a research project into the nature of long-term memory. We strive to provide a clear, uncluttered piece of software, easy to use and to understand for newbies, but still infinitely customisable through plugins and scripts for power users. Welcome to the Mnemosyne Project | The Mnemosyne Project

Welcome to the Mnemosyne Project | The Mnemosyne Project

Genius: Opensource Software Project

Brain Workshop - a Dual N-Back game

Introduction - Download - Tutorial - Details & Options - Donate Brain Workshop is a free open-source version of the dual n-back brain training exercise. What if a simple mental exercise could improve your memory and intelligence? A recent study published in PNAS, an important scientific journal, shows that a memory task called dual n-back improves working memory (short term memory) and fluid intelligence. Brain Workshop - a Dual N-Back game
Awareness Test Awareness Test “How many passes does the team in white make?” A Fun Test of your Awareness… Now try this one: