useless trivia: What Word Means: A She-goat?

Questions

Daryl Hall and John Oates hat their first #1 in 1977 with this song...?

Lean On Me" was written and sung by this man in 1973...?

Michael Jackson was this many years old when "Ben" became his first #1 hit?

She sang with Elton John on the 1976 #1 "Don't Go Breaking My Heart"...?

The #1 song of the year 1979, "My Sharona", was by this band?