Misc: in the 6th century bc, what did nebuchadnezzar build on the banks of the euphrates?

Questions

David Clayton Thomas wrote the words to this Blood, Sweat & Tears song.?

Dawn Robinson, Terry Ellis, Cindy Herron, and Maxine Jones are this group?

Deceased musician, albums include Sheikh Yerbouti, Joes Garage?

Def Leppard song: "Out of me, into you yeah. You can try to get a piece of me."?

Demented Lyrics: "...'cause you can spin a dradle with Captain Kirk & Mr Spock-both Jewish".?