At Ask.com, we believe questions are forever! We only remove items that violate our Community Guidelines; otherwise, they are here to stay. This benefits not only people in Ask.com reading along right now, but down the road when other people search the web for the same information, your contributions today can help these others for a long time to come! Therefore, choose your words accordingly. :-)
If you have a specific need for removal of a question or answer, though, we'd like to hear about it. Please get in touch with our Customer Support team to explain the circumstances.