Three old men were at the doctor for a memory test. The doctor said to the first old man, "What is one plus one?"

"Two hundred seventy-four," he replied.

The doctor said to the second man, "It's your turn. What is one plus one?"

"Tuesday," replied the second man.

The doctor said to the third man, "Okay, your turn. What's one plus one?"

"Two," said the third man.

"That's great!" said the doctor. "How did you get that?"

"Simple," said the third man. "I subtracted 274 from Tuesday."