In a contest, there are some questions that each contestant has to answer, and some of the questions do not need to be answered by every contest, and they are answered by the contestant who is the first one presses the button after the question was released.
For the first type of question, what is the authentic name for it? Can I say "required questions"?
As for the second one, can I use "quick response questions"?
I want to know the authentic expressions for it.