This test is a real good one. I failed to clear it but who knows you might succeed.
All you have to do is, follow this link, look at the two images which ‘appear’ to be identical, and then figure out the three differences that exist between them. Don’t take more than 2 minutes to do that. The answer will anyways be displayed within 2 minutes, so I am just letting you know the time you have in advance.
I could figure just one! 🙁 Of course wont tell you what it was. Go try it yourself. And if you do fair better than me (its damn difficult), do let me know. What are you waiting for now?