Misc: Which Briton won the gold medal in the 100 metres in Moscow in 1980?

Questions

Either of the contibuters to the 4-note Hindol "Taril ha juj Girlja Shankur"?

How one would describe Jeremiah Peabody's pills?

In the female version of this Simon play, the leads are Olive and Florence?

Name of George Clinton's corporation which put out "One NAtion Under A Groove"?

Quite a Year for Plums_?