Misc: What did the US buy from Russia at two cents an acre?

Questions

In what year did the Uk group Amen Corner have a hit album called Explosive Company?

In what year did 'The Searchers' have a hit record with Sweets for my Sweet?

'Paper Lace' told Billy not to be a hero in which year?

In what year did Steve Davis win the World Snooker Championship?

The Salvation Army was founded in what year?