These quizzes seek to test your IQ by asking you various challenging questions about all kinds of subjects. Take each quiz to find out if you're a genius (I bet you are). Time to test your vocabulary ...

This is a straightforward vocabulary test, so if you've ever taken the SATs, this will feel totally familiar. Take the quiz here. It's highly unlikely you'll ever need to write something without spell ...

The world’s shortest IQ test, the Cognitive Reflection Test (CRT), uses three questions to tell if you’re smart enough to go toe-to-toe with bona fide geniuses. It seems easy at first, but it requires ...