Strange interview questions tend to put people off their game. However, there are simple ways to deal with these tricksters that will leave you ahead of your competition, and the key is to be confident in whatever you say and improvise.
In the not-so-distant past, searching for a job was very different than what it is now. Learn the difficulties and take the shortcuts of the online job hunt.
While going into medicine for purely altruistic reasons is admirable, considering what kind of environment you want to work in is important when taking your future sanity and finances into account.