In English, a question mark is used at the end of a question to which an answer is expected or implied.
Question marks within sentences
Question marks typically go at the ends of sentences. In rare cases, though, one may be used in the middle of a sentence—for example:
What do you say, Mr. Ladislaw?–shall we turn in and have a glass?
When indirectly referring to questions, use no question mark—for example:
He asked us if we had any tips to get his girls involved in golf.
Question marks inside or outside quotation marks?
In both British and American usage, a question mark goes inside quotation marks when it is part of what’s being quoted—for example:
He asked, “Are you going to school today?”
When the question mark is not part of what’s being quoted, it goes outside the quotation marks:
Who said, “Give me liberty or give me death”?