Answer:
Mouth up it gets filled, mouth down it gets empty.
What word of five letters has only one left when two letters are removed?
What never asks questions but receives a lot of answers?
How can you throw a ball as hard as you can, to only have it come back to you, even if it doesnβt bounce off anything?
What's that 7 letter word with thousands of letters in it?
Two little holes in the side of a hill. Just as you come to the cherry-red mill.