Your answers to questions and quizzes won't be lost if you cancel your subscription.
However, free users can only access the question or quiz of the day. If you cancel your subscription, you will not be able to access past questions and quizzes which means that, if you miss out on a question or quiz that your partner has answered, you won't be able to access these anymore.
If you have any questions about this, don't hesitate to get in touch!