twenty questions

American  

noun

(used with a singular verb)

1. an oral game in which one player selects a word or object whose identity the other players attempt to guess by asking up to twenty questions that can be answered with a yes or a no.

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Example Sentences

Crossing the street to go to my meeting, a very nice man stopped me and began playing twenty questions with me about my life, about the show, about everything.

From The Guardian • Sep. 22, 2019

Lab medicine obeys rules like twenty questions; they will answer "is it this?" or "is it that?" but not "just what is it?"

From Time Magazine Archive

As he says in the book: "I like to play music, softball, twenty questions, chess, croquet, house, and around."

From Time Magazine Archive

At one point, Cavett desperately started a sprightly game of twenty questions, but Rock couldn't get the hang of it.

From Time Magazine Archive

In fact, it is so tedious and demanding that many students leave as many as ten or twenty questions blank.

From "Outliers" by Malcolm Gladwell