Answer:
I am always in front of you, but you will never see me. What am I?
What has a bell but isn't a church. Is full of air but is not a balloon?
A hill full, a hole full, yet you cannot catch a bowl full.
A woman shoots her husband, then holds him under water for five minutes. Finally, she hangs him. Five minutes later they enjoy a wonderful dinner together. How can this be?
You use it between your head and your toes, the more it works the thinner it grows.
People take me on walks and I run and have fun. What am I?