I was seeing a few sites and i found a few really nice tests
I will also post my result for the tests

1) Iq Test by tickle:- You need to make a small registration ….. then find out ur iq by answering 40 questions …. mine is 158

2) What extention are you by bbspot:- Answer 20 odd questions and know what kinda personality u have You can click on the banner too to goto the test. No registration reqd
I am a .Exe

Which File Extension are You?

3) Which Os are you by bbspot:- Answer 20 odd questions and know what kinda personality u have You can click on the banner too to goto the test. No registration reqd This time you personality is according to os versions
I am a Red Hat Linux

Which OS are You?

I hope you enjoy each one of these sites They are really good