A question mark is used in the English written language at the end of a question. It can also be used in text to indicate that certain information is unknown, for example, a question mark can be inserted if the factual information is unavailable.
You would use a question mark in this situation. Example: "Why did you do that?" said my sister.
Use a question mark to create an interrogative sentence -- one that asks a question.
You never need more than one question mark. To use more than one is for the comic books and texting.
A period isn't required when you use a question mark. In other words, only one should be used.
No, it is not grammatically correct to use both an exclamation mark and a question mark at the end of the same sentence. Choose one or the other based on the intended tone of the sentence.
If your question starts with the words, 'who, why , what, when, where and how, your sentence will require a question mark
Only if the two questions are in the one sentence.
You use a question mark because it's a question. You are asking them how they are doing.
You use a question mark (?) as the punctuation after the sentence or question you are asking.
A question mark is a punctuation mark, it replaces the use of a full stop at the end of a sentence that is asking a question.
No you should only use a question mark.
If you are posing a question, use a question mark (?) for punctuation.