Classical information describes the number of "yes-no" questions it takes to do a task.

Only one click is emitted, usually as an answer to a yes-no question.

Could she phrase a suitable yes-no question so that the lie would give her a direct answer?

For example, yes-no questions present propositions, being inquiries into the truth value of them.

He knew where it was, of course, but couldn't tell her unless she asked the right series of yes-no questions.

Some languages do not answer yes-no questions with single words meaning 'yes' or 'no'.

In English, a special word order (verb-subject-object) is used to form yes-no questions.

Also many (but not all) languages have words that function like the English yes and no, used to give short answers to yes-no questions.

There are two ways to form a yes-no questions.

It can be used alone to answer a yes-no question.