How well do you know F.R.I.E.N.D.S??

errrr...... its in the title: How well do you know F.R.I.E.N.D.S?!

1 How many main characters are there?
2 Who are the 2 actresses that play Rachels sisters?
3 What is Joeys full name?
4 Who plays Gunther
5 What is chandlers job? (season 10)
6 What is the name of Monica nad Phoebes fake british friend?
7 What is one of the object Ross uses to massage one of Phoebes clients?
8 Where does Mike first prepose to Phoebe?
9 What is Rachels sister Amys job?
10 How many sesons of F.R.I.E.N.D.S are there?