tv/ movies: Category: Film Top Cops: Helen Mirren played her in several telefilms.?

Questions

in cricket, what is 'lbw'?

in don mclean's 'american pie', who was he singing about in 'the day the music died'?

where does nodding the head mean no, and shaking it mean yes?

in pool, what colour is the eight ball?

who is flash gordon's arch enemy?