wits

(noun) the basic human power of intelligent thought and perception. Synonyms: marbles. Examples: "He used his wits to get ahead." "I was scared out of my wits." "He still had all his marbles and was in full possession of a lively mind."

(noun) a message whose ingenuity or verbal skill or incongruity has the power to evoke laughter. Synonyms: wit, humor, humour, witticism, wittiness.

(noun) mental ability. Synonyms: brain, brainpower, learning ability, mental capacity, mentality, wit. Example: "He's got plenty of brains but no common sense."

(noun) a witty amusing person who makes jokes. Synonyms: wag, wit, card.