Which entertainer signed off his TV show with the line "Good night, Mrs. Calabash, wherever you are"?

Which French president resigned in April 1969 after voters rejected his referendum on regional and Senate reform? Which actor joked, "I was typecast as a lion, and there aren't all that many parts for lions"? In Shakespeare's "Julius Caesar," who says, "As Caesar loved me, I weep for him... but, as he was ambitious, I slew him… Which nursery rhyme character said "What a good boy am I!" after pulling a plum out of his Christmas pie? Which Burmese diplomat succeeded Dag Hammarskjöld as Secretary-General of the United Nations? Which composer supervised a 1907 phonograph recording of his own opera "Pagliacci"? Which executive told a U.S. Senate hearing in 1998, "At Microsoft we are spending $2.6 billion in R&D this year"? Which composer was buried in New York in 1945 and reburied in his beloved Hungary in 1988?