After driving for almost sixteen hours, a trucker decides to stop and sleep for a while. As soon as he falls asleep, he is awoken by knocks on the cab’s door. “Can you tell me the time, please?” a jogger inquires. “Yeah, it’s 4:30,” says the trucker.
He falls asleep again, but is woken up by another runner who wants to know what time it is. “It’s 4:40!” exclaims the trucker. He decides to try to sleep a bit more by writing “I DON’T KNOW THE TIME” on a piece of paper and sticking it in his windshield.
However, he has awoken again. “It’s 5:25!” another jogger shouts at him.