Light the Lights Ruhi Shubhangee as a Facilitator

This was discussed in the session.There were 13 students. Their names are:
Avic, Ananya, Advaya, Aarav, Reeve, Ruhi, Kimaya, Mrunmayee, Reyansh, Ishaan, Kanaa and Vishnuvardhan.
Two questions were asked as an assignment:
Q.1: What are the four rules? How do you know?
Q.2 : Is it possible to light up all four lights at the same time? Why or why not?

Here is the solution from Ruhi.