Case 1: A correctly begun fast is followed by fainting during the day—identify the ruling for that first day.
Case 2: Sanity returns partway through Ramadan—assess the elapsed days.
Case 3: Menstruation begins late in the day—decide the status of the fast and later make-up.
Case 4: Purity returns at noon—distinguish remaining-day abstention from later make-up. Apply these distinctions to the quiz.