Which dictator was known as "Il Duce"?

Which dialect of southern France is named after a region? A dialyzer is an artificial version of which organ? Which name belongs to both a Dick Tracy villain and a type of crew cut? Complete the title of the Charles Dickens novel: "___ and Son". What is a diplomatic emissary of the highest rank called? Which word names both a diplomatic official and a type of briefcase? A dipsomaniac has an uncontrollable craving for what? What is a disappointing end after a big buildup called?