Even an empty pocket can be filled with air. So in that sense it is still full.
It can have a hole in it!
I sit between you and a star, but far below me is an empty space. I can be infinite or finite depending on how you look at me. What am I?
This is a hard one?
Pipe A can fill a cistern in 4 hours while pipe B can empty it in 6 hours. If both of them are opened together at the same time when the tank is empty, then how many hours would be taken by them to fill it?
