Imagine you are driving from College Park, Maryland, to Washington DC. You approach the beltway on-ramp with about ten seconds to make the call. South: Virginia, Andrews Airforce Base. Or North: Baltimore and Silver Spring.

Say what? College Park is north of Virginia. So you might think south. But no…you are not going to fall for that one! You've been fooled by this before, your passenger reminds you.

"Remember, mom, that you got on the Beltway returning from Baltimore and Went The Wrong Way a...