Here is a test which i found through Arif's blog, called Free IQ Test and decided to give it a try

Free-IQTest.net - Online IQ Test
Well to be fair this wasn't my first try, my first try was 150 and I wanted to do again, then i got 153 and then my third try led to 154. I wonder if i can get higher by pretending to be born in 1999...
Anyway, i challenge you all to beat me :P