how well do you know the Beatles?

if you're a fan of the beatles, this is the quiz for you

1 how many beatles are there?
2 which one is NOT a song by the beatles?
3 what beatle/s are/is still alive?
4 what beatle died first?
5 from what years were the beatles together?
6 who was the youngest of the beatles?
7 who started the beatles?
8 what are the beatles' names?
9 who was the last person to join the beatles?
10 which one is NOT something the beatles played?
11 who was in the band before ringo?