Puzzle games

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Across
  1. 2. What has a foot on each side but no legs?
  2. 4. Which building has the most stories
  3. 5. What has a voice but only speaks when spoken to?
  4. 6. I have a thumb but no fingers, what am I ?
  5. 7. What has to be broken before you can use it?
  6. 8. board What is black when it’s clean and white when it’s dirty
Down
  1. 1. I am light as a feather yet even the strongest man can’t hold me for much more than a minute
  2. 3. What has a ring but no finger?
  3. 4. The more you take, the more you leave behind
  4. 5. I am always there, yet I am hard to find I am in every room, but I am left behind What am I?