Probably none - there are new questions submitted in every category on a daily basis. Not every new question will be answered immediately.
The majority of questions on WikiAnswers are actually unanswered.
Go to Browse Categories. Choose a category. Scroll down. On the left, there is a link Unanswered. Click that and it will show only unanswered questions (unless someone just answered it).
Yes. There is a page in which you can search categories for unanswered questions. View the link below to see the page.
Unanswered questions are generally left on WikiAnswers indefinitely, unless of course they violate WikiAnswers' policies.
Lots
There are three categories that contain questions about Answers:Questions about Answers.comQuestions about WikiAnswersQuestions about ReferenceAnswers
Here's the link to the Unanswered questions about pandas:Special:UnAnsweredQ
Because half the questions are unanswered.
on WikiAnswers -----------Click the blue button up top that says answer. Then type in 'Unanswered Questions'.
You click on that category's name, and click on the 'View all Unanswered questions' button.
Click "Browse Categories" on the left under Site Tools, and then search for an Animal Category. In that category, click "Unanswered questions" and you will be taken to a list of all the Unanswered questions in that category.
To find unanswered social studies questions on WikiAnswers, go to the "Social Sciences" category. In the upper left-hand corner, you will find the word "Unanswered." Click on it and a page of unanswered questions will load. Also notice that there is a list of more specific categories on the "Social Sciences" page. If you click on one of those, you will go to that category page and there will be "Unanswered" in the upper left corner. You will find unanswered questions there, too.Note: If "Social Sciences" appears directly under the question on this page, you can click on it and that category will load. If it does not appear on this page, you can go to the "Browse Categories" page to find it. The "Browse Categories" page is listed in the sidebar under "Site Tools."