Riddle of the Day

[Gizmokid2005]

I reside in a container or can,
You can see and feel me,
I am weightless, colorless, and odorless.
What am I?

ANSWER: A Dent.

-----------------------------------------------------------------

NEXT RIDDLE (Kudos to whoever gets all the answers):

There was a guy stuck in a metal room with a metal door.
The door was locked and there were no windows.
The following items were inside the room:
a piano, table,a saw,and a bat.

How did the man get out?