The Brain Teaser is one of the best types of game/puzzle. Not only does it stop you from doing something useful, it can actually keep you from your work for whole hours at a time.
 Over 2000 Brain Teasers Can Be Found Here
Visit "The Archive's" For All Your Brain Teaser Needs
Visual Brain Teasers can be found Here.
 Brain Teaser

A Fun Zone | A Game Zone | A Puzzle Zone | A Free Zone