It is - however - a more comprehensive answer is usually what's needed.
Yes, WikiAnswers is a Question and Answer community.
There can be, yes- if it is a yes or no question. However, WikiAnswers encourages you to provide a bit of additional information.
Yes, you can submit a question without an account on WikiAnswers.
Yes, if you have patience
Yes, you can.
Yes, But why do you ask this question.
Yes, even non-members can view every question on WikiAnswers. yes.says KOTY30.
Yes, WikiAnswers is actually good for a lot of things. If your question isn't on WikiAnswers, you have to post it. You can't expect your question to automatically be here and expect someone to answer a question that isn't here.
Yes. For example, "What is the definite article in English?"
Yes, if you are a supervisor.
yes. you had to get here somehow to type the question in.
Yes, there is. Look at the question's history.