Answer:
What can fill a room but takes up no space?
If you break me, I'll not stop working. If you can touch me, my work is done. What am I?
No matter how little or how much you use me, you change me every month.
What has a face and two hands but no arms or legs?
I direct you from outer space.
The answer I give is yes, but what I mean is no. What was the question?