Three old men
are at the doctor for a memory test. The doctor says to the first old man,
three times three?”
“274” was his reply.
The doctor worriedly says to the second man, “It's your turn. What is three times three?”
“Tuesday” replies the second man.
The doctor sadly says to the third man, “Okay, your turn. What's three times three?”
“Nine,” says the third man.
“That's great!” exclaims the doctor. “How did you get that?”
“Piece of cake, Doc” says the third man. “I just subtracted 274 from Tuesday.”