how do I get rid of all the questions asked under "Search"?

Answer 1

Assuming you mean items you've typed in Internet Edplorer, you need to clear the Auto Complete setting.

Go to Tools > Internet Options, select the Content Tab, Press the Auto Complete button, and then press the Clear Forms button. To prevent it from "remembering" then in the future, also uncheck the Forms item.

Answer 2

you cant unless you go to eack question on its main page that you wrote and under i think the pencil just find delete question... problem solved