Riddle #786

Question: I cannot hear or even see,
but sense light and sounds there may be.
Sometimes I end up on the hook,
or even deep into a book.

What am I?

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Question: What has a bed that you can't sleep in?

Question: Where do all the letters sleep?

Question: What cannot be seen or felt, but can only be broken by voice?

Question: What tastes better than it smells?