A British dustman doesn't put you to sleep; he collects what?

What kind of drug produces unconsciousness for surgery? A Duluth, Minnesota, park named for which Norse explorer features a replica of a Viking ship? Which novel by Alexandre Dumas became a 1998 film starring Leonardo DiCaprio? Which duo released the 2006 album "St. Elsewhere", featuring the hit "Crazy"? A Dutchman and an Englishwoman married in London on November 4, 1677. Who were they? A DVM is a doctor of which kind of medicine? Which Swedish chemist invented dynamite? Which explosive used in dynamite is also a medicine for heart pain?