How old...?

I was reading a magazine article the other day and it ended with a question from a famous philosopher, which stated, "How old would you be if you didn't know how old you were?"

Good question! In a time like today's world, it is near impossible (at least in the U.S.) to not have some idea of how old you are, even if you may not know your birthday.

Thinking about answering the question really got me thinking. I would say, I would think that I was about 30 when it comes to mental abilities, probably about 40 when it comes to physical health what with my herniated disk and shoulder problems that don't even allow me to run or walk much any more (not to mention getting stiff after only a 45 minute car ride to school); however, when it comes down to it, I think socially i live my life as if I were (and still want to be) about 21 or 22. By pure looks, i would say i probably look about 24, which is two years younger than i actually am (although I think I look my age, I still get carded and when other grad students ask me how old i am they always think i am a few years younger than I actually am, which is nice).

So, how old are you?