The pope does not rule the world. He is the head of the Roman Catholic Church and his ecclesiastical jurisdiction encompasses what is often called the "Holy See".
No
Pope John Paul II.
Pope Joan is a fictional character who never existed.
Pope Julius II was pope from October 31, 1503, until February 21, 1513.
Pope Innocent III reigned from 1198-1216.
There is no rule that prohibits a pope from taking the name of Peter. However, out of respect for the first pope, no man has used that name.
He rules from Vatican City.
The pope in Rome is the pope for the entire world. Each country does not have its own pope.
The Pope or King being better is matter of personal preference of the people that are or would be under their rule or authority.
No it was pope Gergory VII
As of March 2013 the pope of the worldwide Catholic Church is Pope Francis.
Pope Francis, elected in 2013, is the pope of the entire world. There is no pope of individual countries.