You are backing out of your driveway when you hit your neighbor's expensive sports car. Your neighbor, who is standing outside on his porch, becomes visibly upset and approaches you. Unfortunately, you do not currently have the means to pay for repairs to this vehicle. Proceed into the room.
^^ Something like that
Second one: Estimate how many grains of sand are on earth. Be prepared to defend your estimate with the interviewer.
These are pretty common knowledge one where I am at. I haven't applied to Med yet, yet alone participated in an MMI.
Hoping this helps some of you get an idea on what to expect.