Riddle

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Across
  1. 4. What has many keys, but can't even open a single door?
  2. 6. What can fill a room but takes up no space?
  3. 7. What flies without wings?
  4. 8. What has to be broken before it can be used?
  5. 9. I’m tall when I’m young, and I’m short when I’m old. What am I?
Down
  1. 1. What's full of holes but still holds water?
  2. 2. What has four legs, but can’t walk?
  3. 3. What has a neck but no head?
  4. 5. Give it food and it will live, give it water and it will die. What is it?
  5. 10. Arkan's father has three sons: Fauzan, Bima, and ?