IQ Tests, Brain Teasers, and games
This is a premium sight with links to tests, brain teasers, and games
Online Tests of IQ and Personality
Quickie IQ tests. Mostly based on verbal ability.
This one is designed to be "culture-free"
European IQ-test
This sight features fun brain teasers
This test is somewhat serious, really
Humorous
The Densa Quiz!