General knowledge

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Across
  1. 2. Whatgoes up but never come down?
  2. 3. The more you take, the more you leave behind.
  3. 6. Remove my Skin and I won,t cry but you might
  4. 7. If you drop me, I'm sure to crack but smile at me and I'll always smile back
  5. 8. What can fill a room but doesnt take up the space
  6. 9. What is always in front of you but you cant't see?
Down
  1. 1. I am an odd number. Take away a letter and I become even.
  2. 3. If you feed me,I will grow but if yo give mr water, I die
  3. 4. What's full of holes but stil hold water?
  4. 5. Light as a feather, there'd nothing in it, but the stingest man can't hold it for much more than a minute