In a 1941 film classic, which newspaper tycoon tells his guardian, "I think it would be fun to run a newspaper"?

In which 1941 film does Humphrey Bogart tell Mary Astor, "Don't be too sure I'm as crooked as I'm supposed to be"? Gary Cooper won his first Oscar for which 1941 film? Complete the title of the 1941 Best Picture: "How Green Was ___". Which 1941 film includes the line "I guess Rosebud is just a piece in a jigsaw puzzle, a missing piece"? Which star made her final film, "Two-Faced Woman," in 1941 and became a U.S. citizen in 1951? In which 1941 film does a reporter try to learn the meaning of a dead newspaper tycoon's last word? In a famous plot quibble about a 1941 Orson Welles film, no one seems to be in the room to hear the tycoon's dying word… In which 1941 film does private detective Sam Spade seek a priceless statuette?