Which comedian, who played the flower-child Hitler in "The Producers", died on stage during a 1987 performance?

A flock of which birds on the ground is called a "gaggle"? A flop when it debuted in 1904, which Puccini opera set in Nagasaki later became one of the best-loved operas? A Florida fort named for which major gave its name in turn to a large city? Which rockabilly pioneer, who died in 1998, wrote and first recorded "Blue Suede Shoes"? A fob chain is attached to which item, like the one the White Rabbit anxiously checks? A Fodor's or a Frommer's is what kind of book? A foe brings former FBI profiler Clint Eastwood back into action in which 2002 film? What was the Fokker E.III, used by Germany in World War I?