Couple of Tests
The Gender tests claims 100% accuracy:
<a href="http://test.thespark.com/gendertest/" target="_blank">http://test.thespark.com/gendertest/</a>
I Must say it picked my Gender Correctly.
The other a game but nonetheless-The Death Test(on what date will you die?):
<a href="http://test.thespark.com/deathtest/" target="_blank">http://test.thespark.com/deathtest/</a>
September 10, 2037
24% chance its a Heart Attack