You can Edit question only which you ask other wise you are not allowed to edit any questions of others.
You can recategorize, answer questions, edit questions, and do much more on WikiAnswers.
Supervisors and Community Assistants can edit protected questions. Only Community Assistants have the power to edit Preserved questions.
Anyone can edit unanswered questions. But you must have a minimum of 100 contributions to edit answered questions.
you cant
Some questions are not real questions, others don't have an answer.
You go to a question, press edit answer and then type in whatever you want for the answer, if it's true. There are some questions you can't edit, but you can discuss.
Some times the editing functions get turned off in order to preserve the quality and accuracy of the questions and answers.
you cant
yepers
You cant edit someone else's content on YouTube, Its not like WikiAnswers.
you cant, he's dead
Anybody can edit most questions on WikiAnswers. Supervisors can delete questions, but we generally do not.