I was looking at a photo of Mohammed Aman defeating David Rudisha and thinking "No way is that guy 17."
So I showed the photo of him beating Rudisaha
http://www.iaaf.org/mm/Photo/06/25/75/62575_FULL-PRT.jpg
to my wife.
I asked her "How old is the guy on the left?"
I suggest everyone else ask someone they know and post the results.
My wife's answer. "42".
I started laughing and my wife said, "Wow I got it exactly didn't I?" I laughed and said, "So there is no way he's 17."
So post your results here in this format:
Wife: 42