The Category "Definitions and Word Differences" is the best place for those questions. You can find a link to the Category in the "Related Links" section of this answer.
It makes it easier to find questions/answers if the field is more specific.
You can find the most amusing questions in the 'Most Amusing questions ever asked on WikiAnswers' category. There is an entire category dedicated to amusing questions. Search for that category when you click the 'browse our ... categories' on the home page, and you should find that category.
You can find unanswered questions about Neptune in the Planet Neptune category: Special:UnAnsweredQ
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.
You can answer all questions. You just have to find out what category they are in, and Answer away!
After the category title (and explanation if applicable), it says in bold 'Total questions ...' This is rounded up to the nearest hundred.
This category is for questions and answers related to generic information or topics that do not fall under a specific category.
Probably because like this one, you are not asking questions that fit into a specific category. If you were asking about history or cars or something like that it would be in that category.
Uncategorized questions are questions which have no specific category. These type of questions can be pulled from a broad topic range and can cover various subjects.
No, you can answer any question, anywhere on WikiAnswers.com.
There is no automatic way to take you to the oldest of the questions in the Uncategorized category. To see all the questions in the Uncategorized category, click on the Related link.