An umbrella could.... but would? doubtful!
An umbrella.
Air
Smoke
Green
What may go down the chimney up but not down the chimney down?
This sounds like the old riddle "What goes up a chimney down but can't go down a chimney up?" The answer is "an umbrella."
An umbrella
It's an umbrella :P substitute "up" for "open" and "down" for "closed."
What goes up when rain comes down is an umbrella.
A chimney.
I don't get why, but it's an umbrella
an umbrella
Smoke
an umbrella
An umbrella.
Smoke
What may go down the chimney up but not down the chimney down?
An umbrella
An umbrella! It can go up a chimney when it's down because it's thin but cant go down a chimney up because its too big!
An umbrella !
This sounds like the old riddle "What goes up a chimney down but can't go down a chimney up?" The answer is "an umbrella."