Question mark required: 'Would you please open the door?'

[Tom]

Hi

Could you please tell me if I should put a question mark at the end?

1- Would you please open the door?
2-Would you please stop that nonsense?

Tom

[Pamela]

Yes, Tom. A question mark() is needed.

[Tom]

A lot of thanks, Pamela. :D

Would any of our moderators like to shed some light on it?

Tom

[Conchita]

I wonder what makes you doubt, Tom? These are direct questions and require a question mark, as Pamela said.

[Tom]

[Mister Micawber]

.
I agree that they are direct questions and normally require a question mark. I can also imagine the phraseology being used in a more rhetorical sense by an angry mother: Would you please stop that nonsense!

This seems to be an ideal job for the INTERROBANG.
.
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Native English teacher at Mister Micawber's

[Prezbucky]

Declarative statements do not require question marks.

For instance:

I wonder when the Bears will win again.

vs.

When will the Bears win again?
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Billie Jean is not my lover. Hee.