NO
bishops and archbishops
There are two - The Archbishop of Canterbury, and the Archbishop of York.
More or less. In both churches archbishops are high ranking bishops usually in charge of a large or historically important area.
Immediate Head of Bishops of certain areas
Historically, it was considered a good career for younger sons; bishops and archbishops lived a fairly noble-like lifestyle, and it avoided splitting the family estate.
The main types are: assistant bishops, titular bishops, diocesan (or ruling) bishops, archbishops, metropolitans, popes and patriarchs. They are all bishops, but they have different levels of seniority.
Popes, cardinals, archbishops and bishops
All cardinals are bishops or archbishops.
Yes. 26, in fact, archbishops or bishops of the Church of England are entitled to sit in the House of Lords, referred to as "Lords Spiritual".
My Anglican minister said one suffices for both Bishops and Archbishops.
No, Archbishops are bishops who preside over an Archdiocese, they may also be called metropolitans. Every group of dioceses in the world belong to an Archdiocese headed by an Archbishop. The Holy Father is the Archbishop of Rome.
Hierarchy