An Enlightening Riddle
Q. I weigh nothing, but you can still see me. If you put me in a bucket, I make the bucket lighter. What am I?
A. A hole!
Q. There's a one-story house where everything inside is pink: pink walls, pink doors, pink floors, pink ceilings, pink windows, pink curtains, pink chairs, and pink tables. What color are the stairs?
A. There are none—it's a one-story house!