Direct questions
Place a question mark at the end of any sentence that is a direct question.
If the question is a direct quotation, repeating the speaker’s exact words, a question mark is still used.
Other types of questions
- Indirect questions
Do not use a question mark in an indirect question, in which the speaker’s exact words are not repeated. Use only a full stop, since the whole sentence is now a statement.
- Courtesy questions
If a request or instruction is put as a question for reasons of courtesy, do not use a question mark.