Puzzle Genius

From a SPAM email message...

On a shopping trip to the city, a backwoods farmer bought a 24-piece jigsaw puzzle. He worked on it every night for two weeks. Finally, the puzzle was finished.

"Look what I've done, George," he said proudly to a visiting neighbor.

"That's surely somethin', Bob. How long it take you?"

"Only two weeks."

"Never done a puzzle myself," George said. "Is two weeks fast?"

"Darn tootin'," Bob said. "Look at the box. It says, 'From two to four years.'"