Without question marks, we’d miss out on all kinds of things: invitations, jokes, the Riddler . . .
No doubt, the question mark is a nice little piece of punctuation. And, best of all, it’s easy to use!
What Is a Question Mark For?
The main purpose of a question mark, perhaps unsurprisingly, is to indicate that a sentence is a question. Direct questions often (but not always) begin with a wh- word (who, what, when, where, why).