Eurovision Breakthrough Era (1973-1974)

Eurovision Breakthrough Era (1973-1974) trivia questions

1. In 1974, which country did ABBA represent when they won Eurovision?
2. Which 1974 ABBA song won the Eurovision Song Contest?
3. ABBA formed in which Swedish city in 1972?
4. Which pair in ABBA were married to each other during the 1974 era?
5. Which other pair in ABBA were also married during the 1974 era?
6. What does the second 'B' in ABBA stand for?
7. In 2005, Eurovision's 50th anniversary named which ABBA song the contest's best?
8. Before fame grew, ABBA originally formed in what year?
9. ABBA were the first group from a non-English-speaking country to do what?
10. After ABBA disbanded, which two members kept writing for stage and film?