They are not all contemporary. The style of church is not dictated by doctrine, but rather a way for the members of the church to express and present their doctrine. The reasons that many churches choose to have a more contemporary service is because more upbeat music, etc. is more natural for the members to express their love for God (like the language of their heart) and more welcoming to visitors.
No protestant churches do not have a single leader like the pope.
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!
Some presbyterian churches have deacons.
The founders of many Protestant Churches felt that having statues or pictures of saints in their churches could be regarded as a form of idolatory.
Protestant, most churches such as Methodist or Baptist come from the protestant faith.
yes
No. Many Protestant and Orthodox churches also name their parishes for saints.
Protestant and Catholic. There are also Cults.
Protestant and Catholic. There are also Cults.
All Protestant churches are different. Ask your minister for the rules of your church.
it divided the roman catholic church which lead to protestant churches
There are many Protestant translations, but the most common are the NIV and the KJV.