EXPO Riddles- 4

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Across
  1. 1. What five-letter word becomes shorter when you add two letters to it?
  2. 2. It belongs to you, but other people use it more than you do.
  3. 3. What has one head, one foot, and four legs?
  4. 4. What has two hands, but can't clap?
Down
  1. 1. What is so fragile that saying its name breaks it?
  2. 2. What has one eye, but can’t see?
  3. 5. What can you catch, but not throw?