Here's a long one:
A 46-year-old man decides to get a face lift for his birthday. Afterward, he was astounded by how young he looked. After he leaves the hospital, he goes to a newspaper stand. He buys his paper, but just before he leaves he asks the guy running the stand "How old do you think I am". The guy running the stand replies "Hmm... About 35?". The man is pleased that somebody thought that he was that much young, and before leaving, he tells the guy "Actually, I'm 46."
He then goes to a butcher shop and asks the same question before he leaves, to which the butcher responds "About 29?" The man is even more happy now, and leaves saying he's really 46.
While on his way home, he meets an old lady at a crosswalk. He asks her the same question. "Well, there was a sure-fire way to tell a man's age back in my day" she answers "All I have to do is stick my hand down your pants and mess with your junk for a few minutes, then I'll know your exact age". The man replies, "Eh, why not?" and lets the old lady stick her hand down his pants. A few minutes pass, and the old lady pulls her hand out and says "You're 46 years old". "That's amazing!" says the man "How did you know that?" he asks. "I was behind you at the butcher shop" she replies.