Riddles

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Across
  1. 5. what is black when you buy it, red when you use it, grey when you throw it
  2. 6. is white when its dirty
  3. 7. is easy to pick but hard to throw
  4. 10. has rings but no finger
Down
  1. 1. can be touched but never seen
  2. 2. has cities, but no houses, mountains but no trees
  3. 3. what bank has no money
  4. 4. can be picked but not chosen
  5. 8. flies without wings
  6. 9. can run but never walk