Given an trivia question precisely answer the question with a word/phrase/name. External resources such as Wikipedia could be used to obtain the facts.

Who played Sandy in the 1975 film Grease?
olivia newton-john

'Endless Love' is a song duet by Diana Ross and which singer/composer?
lionel richie

Which English authors works include, Saturday Night and Sunday Morning and The Loneliness of the Long Distance Runner?

alan sillitoe