What about the doorknob? When it's removed from the door, is it just a knob?
How about rope. When it's tied, it's considered a knot. Why is it not considered a rope with a knot in it. Also, why is the knot in the rope? Why isn't it around the rope?
Why do we drive on a parkway and park on a driveway?
Why does cargo go by ship and shipments go by truck?
Why can't we divide by zero?
Why a duck? Why not a chicken? (10pts who can tell me where I got that one)