music: Lyrics, elton John,I remember when rock was young.....?

Questions

In which game do players try to reduce their score to zero?

"AD" after a date signifies a number of years after the birth of whom?

Which animal is associated with the beginning of a MGM film?

What is the large stone circle on Salisbury Plain's called?

What type of flag is shown to the winner of a Grand Prix motor race?