Misc: In 1984 USSR announces it will not participate in ---------- Summer Olympics.?

Questions

Who were believed to celebrate Walpurgis Night on the eve of May Day?

Besides gin, what other alcoholic drink is used to make a White Lady cocktail?

Who is the anti-heroine of Thackeray's "novel without a hero"?

In which group would you find Jarvis Cocker?

With which group does Damon Albarn sing?