music: Song: Name The Artist: Changes?

Questions

who said, in his last words, that "last words are for fools who haven't said enough"?

who said, in his last words, that "i shall hear in heaven"?

after which battle, in which he emerged triumphant, did lord nelson die?

who is, as of 1999, britain's longest serving post-wwii prime minister?

who was south africa's last apartheid president?