music: 50's Chart Toppers: Name The Artist: Ka-Ding Dong?

Questions

Who wrote the thrillers, "Sheba" and "Year of the Tiger"?

Who wrote the fantasies "Popcorn" and "This Other Eden"?

Which American female vocalist had a hit in 1980 with "Call Me"?

Urea is essentially made up of carbon dioxide and which other chemical?

In which everyday household products would find alkyl benzene sulphonate?