When Kennedy says "Why does Rice play Texas?" what kind of metaphor is being used? 

In the Children's Crusade Against Communism cards, where Mao Zedong is portrayed as a green character, what rhetorical device is being used? 

When Neville Chamberlain avoids saying the word "war" and instead describes it as "something that might have rendered all our attempts at peaceful solution useless" he is using which rhetorical device? 

Winston Churchill uses which rhetorical device, involving repetition of a word or phrase at the beginning of successive clauses, in the following quotation: "We shall fight on the beaches, we shall fight on the landing grounds, we shall fight in the fields and in the streets, we shall fight in the hills; we shall never surrender"