Brain Teasers:
Tantalize Your Mind

But whether they can flex the mind enough to improve your IQ test score is a matter of debate.

Aside from the challenge of solving a teaser, some people are drawn to the opportunity to compete against other players, depending on how the web site providing them is set up. Puzz.com's scoring and multi-player zone offers visitors the chance to rank against other players. There is also an email list where you can get a teaser sent to you daily.

One of the best collections of links for brain teasers we've found is at barryispuzzled.com. Under the heading of Further Recommended Sites, you'll find teasers, riddles, puzzles, interactive games and more.

There is a daily brain teaser at Braingle.com that includes an archive of past teasers. This site allows visitors to register and submit riddles, rate puzzles and track the teasers.

If you're looking for brain teasers for kids we've found a great site at brainconnection.com. Among the features is the 'ABC Gulp', which helps children learn their ABCs. There is also 'Bear Wear', which tests knowledge of speech sounds.

And if you're looking to feed your brain with nutrients by knowing which vitamins, herbs and foods keep you sharp, there are plenty of sites we're recommending to keep you both busy and relaxed.

Of course, one of the best ways to boost your IQ is in the classroom. The right teacher -- and the right school -- can make all the difference in making the most of intellectual potential.

You can help make sure you make the right choices for schools by visiting procolleges.com.