Its very easy to add questions. Flow the steps below.
1. On the administrative back end screen of WordPress, click on the WP-Pro-Quiz tab, on the left side of the screen. When you do that, you will see a list of Quiz’s you have created, or can make a new quiz.
2. If you already made a Quiz, underneath the quiz name (You will have to put the mouse over the Quiz name), you will see “Questions|Edit|Delete|Preview|Statistics|Leaderboard”
3. Click on Questions. At the bottom of the next screen that comes up, click the “Add question” button.
4. After you click the “Add question” button, there will be a series of choices and prompts for you to choose the type of quiz question (single choice, multiple choize, Cloze type, ect) Just fill out the information and then save the question you answer into WP Pro Quiz.