Looking for a workout for your noodle? The Core Mind Builder CD-ROMs promise some mental pushups with hundreds of hours of intelligence testing designed by top MENSA puzzle editors and test experts. The software builds abstract and logical reasoning powers with hundreds of challenging questions and brain teasers. The Core Mind Builder Pro includes four interactive CD-ROMs that include verbal and math tests, and IQ and Aptitude Builders. Not bad for less than forty bucks.