Here's another old one. (Geez, why do I only know old riddles?)
What goes up a chimney down, but not down a chimney up?
Hint:
<span class='standouttext'>Spoiler : </span><span class='spoiler'> What could be pushed up a chimney when it (the object) was down, but not pulled down a chimney when it (the object) was put up? </span>
Answer:
<span class='standouttext'>Spoiler : </span><span class='spoiler'> An Ubereil. No, whoops, wrong spelling, an Umbrella. </span>
