Here's one I know from childhood. I didn't see it on here, so I thought I would add it.
What can go up a chimney down, but not down a chimney up?
Here's one I know from childhood. I didn't see it on here, so I thought I would add it.
What can go up a chimney down, but not down a chimney up?
An umbrella. If "up" (open), you cannot pull it down a chimney (it's too wide); if it's "down" (closed), it will easily fit through.
Down
It goes up a chimney down, and in the unlikely case that it isn't burnt up and comes back down the chimney it would come down down.
Well, perhaps a possible answer is
An (opened) umbrella !