To set a random order of questions in the survey, go to the settings (cog icon). You can change the order of all questions, all except the first, all except the last, or lock custom pages.
How to change the order of responses in a survey?
In the Choice question, you can arrange a random order in which the answers are displayed. This feature is great for quizzes or tests. To randomize the order of responses, check this option in the right panel.