I guess if you sign up then you can answer as many as you want.
As many as you like - this site is totally and utterly free.
Doubtless many questions appear 'dumb' when you know the answer. Doubtless many 'dumb' children ask unnecessary questions. The reasons they do so are as varied as those that ask them.
Anyone is welcome to ask questions on this site.
That will depend on the question. WikiAnswers is one site that you can find answers for questions on. There are also many sites that specialise in particular subjects where you can ask questions and get answers.
to answer questions or to ask them
ask questions, get them answered.
Yes
There are many people answering the questions on this site. Some are scholars, some are not. It is a wiki, which basically means that anyone can come and ask or answer questions on the site. Kind of a collaborative community, trying to answer each other's questions.
Welcome aboard-it's unlimited, but they must be real & not merely questions to spam the site or anything.:)
Because it is a site where people answer the random questions of other people.. Simple enough.
WikiAnswers has many attractive features that attract many people to ask questions on the site.
Besides answers.com, answers.yahoo.com is another site you can ask questions and get answers