Rhetorical Questions :
How else should we end them, after all?
Put a question mark at the end of a sentence that is, in fact, a direct question. Sometimes writers will simply forget. Rhetorical questions (asked when an answer is not really expected), by the way, are questions and deserve to end with a question mark:
What if I said to you, "You've got a real problem here"?
Notice that the question mark here comes after the quotation mark and there is no period at the end of the statement.
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