Two problem questions for the default cases could be:
To create problem questions about a topic, we must take into account the data we have about that problem in order to pose a question that expands our knowledge about it or that is adapted to the information we already know.
According to the above, in the case of couples and individuals waiting in the elevator, we must create questions taking into account the hypothetical cases in which there are 3 couples and 6 separate people.
So, the questions we can create are:
Learn more about problem question in: https://brainly.com/question/11847484