Yes, some people answer their own questions on the site. As long as a question is answered properly, any answer is valid no matter whether it was your question or not.
Some questions simply can not be answered. Some questions can only be answered by the person asking them. Some don't have a single, simple answer. The answer is different depending on point of view or the context in which it is asked or what it is referring to.
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....
When you are very desperate. 90% of the times, your answer will be answered by an idiot, a malicious interloper or someone with no idea of the subject matter. However, you may get lucky, but the chances are slim.
No; and this answer is proof of that. Thousands of answers are provided every day, though not all questions get answered.
We the readers answer the unanwered.
No, Answers does not post the questions on Facebook.
you can not, but you can delete the answer and answer it yourself.
Not all answers are inadequate. These questions are answered by the public, so some people could just say stupid answers but some are quite adequate
Yes. In fact you just did.
People answer the questions on Answers.com to help others.