The Watu Quiz plugin has been constantly maintained & developed for the past 10 years. Create exams, questionnaires, and quizzes, and display the results with the answer immediately. For every grade in the quiz/exam, you can assign a grade and a point level. Using the total number of points that were collected, Watu Quiz will determine your grade. With single-choice and multiple-choice question options, embed quizzes or publish them automatically in posts or pages using shortcodes.
WordPress Plugin Link