Anchor: Devising the question calls for the deft and tactful art of the straight man, for playing George Burns to your Gracie Allen.
Entailed: Straight men are needed for forming the question. 
Contradiction: Gay men are needed for making the question . 
Contradiction: Abraham Lincoln is sitting in a crowd.
Contradiction: Why assume gamblers are being fooled?
Contradiction: No one is on the street.
Contradiction: The basketball player is in the game.