Race Against Time
RAY: Here’s the answer. Now remember, they could not use any timepieces, per se.
TOM: Per se. But it doesn't mean you couldn't measure time somehow, if it weren't with a timepiece.
RAY: Right. You could use the sun. And I'm sure people were trying to think of how to use the odometer, or singing a song. You could do that. They could sing the "Star Spangled Banner."
But better than all of those is you turn on the windshield wipers. And you count the swipes.
RAY: And you can't get a better timepiece than that. Who's our winner?
TOM: That's very good! And the prize this week goes to Julie Johnson from Washington, D.C. Congratulations, Julie!
[ Car Talk Puzzler ]