The song "Summertime" ("and the livin' is easy") comes from which opera?

What word names a hard fruit stone or a cavity in the ground? What solid shape has six identical square faces? A song and a dance were named for which woman who swam the English Channel in 1926 and died at 98 in 2003? Which artist's song hit No. 1 in 1999, making her, at 52, the oldest woman to that point to top the Billboard Hot 100? A song in which 1967 film begins "If I could talk to the animals"? Which song is on the Beatles' "Magical Mystery Tour" album? Which comedian sang a 2008 song to her then-boyfriend Jimmy Kimmel about Matt Damon? Which songwriter wrote the autobiography "Bound for Glory"?