The categories themselves cannot be changed, except by those authorized to change them.
If a question is in a wrong category, contributors can recategorize them into the correct categories. Just click on "edit categories" under the question.
Yes, you can submit a question without an account on WikiAnswers.
You can't. But you can submit Hebrew questions in the relevant categories and they'll be answered.
Yes.
Requests Regarding CategoriesYou can make any category request (adding, moving, renaming, etc.) by filling out the form that is accessible via the main categories page. The link to the form is located in the bottom right corner of the Newest Categories list. (See the Related link below to go to the form and submit your name change request.)
Please use our forum to submit your ideas.
You can clear your WikiAnswers watchlist of questions by selecting "My Watchlist" in the left sidebar, then selecting "Click here to change the list", then "Deselect All" and then "Remove Questions" under "Watched Questions". You can elect to stop receiving e-mail notifications of changes to your watched questions & categories by selecting "My Settings" and unchecking "A daily digest of new unanswered questions in my watchlist categories and notifications about updated answers from my watchlist" and then "Submit Settings".
Because they don't know the answer/s.
If you mean, where is the submit option for when submitting question's to wiki.answers.com then, if it's help there is not a submit button, you click the button 'GO' or when you have typed your question click the button 'ENTER' in your keyboard and then wait and it will submit.
When you submit a question on WikiAnswers on a Tuesday, the same thing happens as would on any other day. The same is true of submitting answers.
No, you can't. It shows the picture at first but it goes away when you submit it- sorry! :(
Anti-Contributing to WikiAnswersTo add an alternate to a question without counting it as a contribution point, then ask a question on WikiAnswers. Before you officially submit the question, you can edit it. After you edit and submit it, your pre-edited question will be one of its alternates.
You can ignore the spelling suggestions and submit the question anyway. Wikianswers can get confused when the question contains proper nouns, Minecraft is often 'corrected' to 'mine craft' for example, but you can ignore the suggested correction and submit it anyway.