Misc: what is the only flexible murder weapon in the game 'cluedo'?

Questions

Which Danish philosopher, wrote The Concept of Dread and later had his views used as the basis for existentialism?

What was the name given to the short bobbed hairstyle, popular amongst upper class women of the 1920s?

In the Bible, which ethnic group took Samson prisoner in Gaza, resulting in him pushing down the temple of Dagon?

Houari Boumedienne was president of which country from 1965 to 1978?

Who was the American millionaire, given an honorary knighthood in 1980?