Question Mark
Question mark (?) is placed after questions. The sentence following the question mark begins with a capital letter.
Why is he absent?
Where has he gone?
Question Mark Rules
1. In the indirect speech, we do not place the question mark after statements
with question words not used for questions.
Sybil asked me What I was doing.
Where he lives is not known to me.
2, When used in polite requests, question mark is placed at the end.
Would you mind helping me with my homework, please?
3. Question mark is used with a date, year, etc, to express doubt.
The party - on 15 November?
Geoffrey Chaucer (?-1400)