An older woman was sitting on a park bench reading her newspaper when
she was interrupted by an elderly man who said, "I'll bet you can't
guess how old I am."  She looked up and said, "Take off all your clothes
." He did and she said, "Turn around."  After looking him over carefully
she said, "Turn around again."  He did and she said, "do it once more."
After he turned around yet another time she said, "You're 93 years old."
 He was astonished and said, "That's really amazing, how did you know my
age?"  "You told me yesterday," she answered.  Lyle's Joke Boutique.