80s Films: quote: "if brains were dynamite, you couldn't blow your nose."?

Questions

The flop 1960's diet drink Minivitine was a spinoff of this drink mix.?

Camoes wrote in this language.?

His work was published in 1755 as the Dictionary of the English Language.?

Wrote The Teachings of Don Juan: A Yaqui Way of Knowledge.?

Jean Anouilh's play about Henry II's problem with the Archbishop of Canterbury.?