Misc: in the witwatersrand in 1886, near where were massive gold deposits discovered?

Questions

"Subdivisions", "Limelight" & "Marathon" are by this trio.?

"Sunshine Of Your Love" was made famous by this group?

"Tell my wife I am trolling Atlantis, and I still have my hands on the wheel"?

"The Air That I Breathe" was written & performed by the _______?

"The Animal Song" was written & performed by this Australian band?