Misc: This U.S. volcano last erupted in 1914?

Questions

How many times did Bjorn Borg win the Wimbledon Mens singles?

Which nglish county boasts the longest stretch of coastline?

Who was the first Coronation Street regular to move to the new Docklands developement?

Which British royal took tea with Adolf Hitler?

Of what form of artistic expression is Caedmon the first named British exponent?