Click the box next to the questions, click Add selected questions to the quiz.
Add a module heading
If you have a number of questions and it would make sense to group them, you can add a module heading. With a quiz of 20 or more questions using free navigation, headings may be particularly helpful to the user.
To add a heading above the first question, click the pencil above the question, type the heading title, then press Enter
If you want to add a module heading to later questions, click on the Add pull-down menu and select 'a new module heading'. It will be created above the question you clicked next to
Click on the 'New heading' pencil to create a heading (other option is to delete)
Preview the quiz
When you have finished adding questions, remember to preview the quiz. In the Administration block, click Preview
You will not be able to add any further questions to the quiz once it has been attempted