Claude Rains played which elusive character in a 1933 film?

Which classic comedy routine is associated with Bud Abbott and Lou Costello? Claude Bessy long directed the ballet school of which European capital's opera? Claude Brown's 1965 autobiographical book about growing up in Harlem is "Manchild in" what? Claude Rains beats Lon Chaney Jr. to death with a silver walking stick in which 1941 film? Claudia Draper, Dolly Levi and Fanny Brice are roles played by which star? Claw and ball-peen are types of which tool? Which soft white mineral is carved into fine tobacco pipes? Which brand makes the SweeperVac and the WetJet?