RAY: While we were way up north this fall looking at the New England foliage, we visited our Chief Web Lackey, Doug Mayer. He said, "There's a road right near my house that runs directly north and south."

I said, "Yeah? Show me."

And Mayer says, "I can put my car on this road and point it north, and drive for a mile and when I'm done, I'm a mile south of where I started."

The question is very simple: How's he doing it?

[ Car Talk Puzzler ]