music: 70's Chart Toppers: Name The Artist: One Man Band?

Questions

what two "happy days" spinoffs have "and" in their titles (format: 1, 2)?

what was the name of the robot agent in "get smart"?

who played schneider, the handyman, on "one day at a time"?

who's real, ideal, awfully cute, and an ever-loving doll in a monkey suit?

george cukor won his last oscar for directing which 1964 musical?