SCIENCE: What percentage water is your brain?

Questions

Who was King of Mycenae and Commander of the Greek forces in the Trojan War?

Which film, directed by Jonathan Demme, won the 1991 Academy Award for Best Picture?

Name the Italian President of the Christian Democrats and five times Prime Minister, who was kidnapped and murdered by the Red Brigade guerrillas in 1978?

2a What name is given to the 1913 show of artists' work in New York, which is often regarded as the beginning of public interest in progressive art in the U.S.A.?

Which French philosopher and political thinker wrote The Social Contract in 1762?