It might have several reason, may be the question isnt clear enough - revisit it and see
Are you asking something which is requiring someone opinion - if it is then many will not prefer to offer an opinion
There are a number of reasons why your particular questions may not be answered:
You can not do that from Kindle.
because the inventor of answers.com thought of that name and it has answers.com because you can answer questions....
No, Answers does not post the questions on Facebook.
Yes. In fact you just did.
People answer the questions on Answers.com to help others.
Some do get posted on Answers.com.
yahoo.
Because some of your questions may not have an answer or we don't know it yet
4 or 5
Lots of people.
No, they aren't.
Yes