useless trivia: What Word Means: To Cancel A Sin By Subsequent Actions?

Questions

What repeated word forms the total lyrical content of the Entertainment USA signature tune?

Which organisation said to Mrs Thatcher, we only have to be lucky once, you have to be lucky always?

What weapon did The ancient Mariner use to shoot down the albatross?

What is the alternative name for Indian Corn?

What is the first name of cricket captain Colin Cowderys test cricketing son?