Misc: What insecticide was discovered in 1939 by Paul Muller?

Questions

In 1929 First Academy Awards were given out. '---------- ' won best picture. Best Actor went to Emil Jennings; Best Actress, Janet Gaynor. ?

In 1952 Pierce ---------- (in Israel), actor (current James Bond), born. ?

In 1955 Debra ---------- (in Columbus, Ohio), actor, born. ?

In 1955 Olga ---------- (in Russia), gymnast, born. ?

In 1966 Janet---------- , singer, Michael's sister, born. ?