You want questions and answers about John Steinbeck's Of Mice and Men? We've got em. About 30 questions with answers. Make the whole thing extra credit or create a quiz from it. It's packaged as a study guide with answers along with a chapter 1-2 quiz with answers.
Any time you are teaching a novel that's been taught by thousands of other teachers, consider getting your questions and answers from TpT. It's sad to see overworked teachers fresh out of college trying to create lessons the way my wife and I did a decade earlier. Just use someone else's.