In the survey edit area, you can delete elements and entire pages of elements. If you would like to restore your questions, we have a “Deleted Questions” box where you can see all of the questions that have been deleted in your survey.
You will find this box if you scroll to the bottom of “Element Library”. You can simply drag the deleted question back into your questionnaire:
What happens to my results when I delete a question?
When a question has collected some answers, those answers will of course be shown in the survey results area. However it is important to note that, if you delete the question from the survey, then these answers will also be removed from the results. To get the answers back in the results you will need to add the question back to your questionnaire.