At last we are getting some concrete context! It is now quite obvious that what you want is not the quiz activity but a survey-like activity such as Feedback or Questionnaire.
The Moodle Quiz activity is used for assessing a student's knowledge of a subject matter. Answers to quiz questions are evaluated as either correct or incorrect (or sometimes partly correct). In a survey-like activity, there is no notion of evaluation or correctness.
Since you also posted your question to the Questionnaire forum I will answer it there.
Joseph