Riddles!

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Across
  1. 3. What goes up but never comes back down?
  2. 6. What can run but never walks?
  3. 7. What is full of holes but can still hold water?
  4. 8. What starts with a"P" ends with an"E", and has a thousand letters?
  5. 10. What is always in front of you but can never be seen?
Down
  1. 1. What can you catch but not throw?
  2. 2. What has one eye but can't see?
  3. 4. What's one thing that tastes better than it smells?
  4. 5. What runs all around the backyard but never moves?
  5. 9. Give me a drink, and I will die. feed me, and I will get bigger. What am I?