You can easily change the quiz name from the quiz editor.
1. First, make sure that you're logged in to your Quizizz account.
2. Select the quiz you wish to edit and click the "Edit" button from the quiz page.
3. From the quiz editor, click the Pencil Icon() next to the quiz name to edit it.
4. From the popup(as shown below), you can make changes to the name and subject for the quiz.
5. Click the "Save" button to save the changes to the quiz.