No! There are two requirements to being pope. The person must be male and must be a Catholic.
There has never been a Protestant pope in history.
There is no pope of Protestant churches. In fact, you could say that one of the main reasons for the Protestant Reformation was not to have a pope!
No, Billy Graham is not the Protestant Pope. The title of Pope is specific to the leader of the Roman Catholic Church, while Billy Graham was a prominent Protestant Christian evangelist and not a pope or a leader of a specific Protestant denomination.
No protestant churches do not have a single leader like the pope.
Protestant
No, the ranking is a Catholic position.
No, despite what some Protestant and Pentecostal groups might say, the pope is not a liar.
A group of German princes were protestant. The term Protestant originally referred to these German prince who were not loyal to the Pope.
There is only one pope at a time and he is Catholic. There are no Protestant popes although, technically, the pope is the spiritual leader of them also.
Protestant.
The Protestant Revolt, or Reformation.
Cardinal is the next step down in the hierarchy from the pope.