A lot of them.
Your question at wikianswers might never have been answered because of the following: 1. It is not clear- you have to specify more 2. It is non-understandable 3. It is harmless/nonesense
Currently - the oldest question in the 'Questions about WikiAnswers' section is How did Microsoft impact WikiAnswers- posted on 25th May 2007.
If it does not get answered, you just have to wait. If you do ask again,( which is not recommended) it will not get your answer any faster. If your question was spammed, or just plain nonsense, then your question would have been deleted, and it will never have been answered.
Because you can't answer a question that has never been asked. Ideally, there there should only be two kinds of questions on WikiAnswers - those that have been answered, and those that will be answered. When a contributor comes across a question that hasn't been answered, and they know (or think they know) the answer, they will put it in. That is how the collection of questions and answers grows.
WikiAnswers does alert you when a question you asked has been answered. At the home page and on question pages, the bell used for notifications at the top-right of the page will have a red notification box to let you know about questions you've asked that have been answered.
There will be a phrase that says this question has not been answered yet then click on answer this question that will be under that phrase
This is the only question you've asked, and it has been answered.
"Enter a question here" is the box for you to ask your new question on WikiAnswers, or to ask questions that may have already been asked and answered.
If your Questions have been answered than wikianswers will send you an email.
Well, Just like "that" - you just did it! Good Job!
If you mean on WikiAnswers, no, they are not an answer on WikiAnswers. If a person has absolutely no information to put in an answer, they should go to another question that they can answer or at least partially answer. Answering a question even with "I don't know" makes that question appear to be answered on WikiAnswers, which means it is less likely to BE answered, because people will think it already has been.
Your question hasn't been asked by anyone else yet. Please submit the question to WikiAnswers and then your question might get answered. WikiAnswers' database doesn't have all of the questions in the world yet, so it would be nice if you asked the question so others can answer it for you.