Misc: Whose artificial heart clicked for 112 days?

Questions

A.L. Webber musical with "The Music Of The Night" and "All I Ask Of You"?

According to "Beatles Greeting", what does John play besides guitar?

According to Roy Orbison 'No one could look as good as_________________?

According to Tommy Tutone, whose phone number is 867 5309?

Adam Ant advocates we do this in the title cut of his 1983 album?