music: 80's Chart Toppers: Name The Artist: Two Hearts?

Questions

Who wrote Nore Dame de Paris?

Where in Britain can you see a grape vine that is certified 300 years old?

What number when increased by 10%, the result of which is decreased by 10% gives you 99?

What does the Bessemer process do?

Whose case did Charles VII reopen in 1455, 24 years after she had been sentenced to death?