“It’s warm?” and “Is it warm?”

[Odessa Dawn]

"It’s interesting to ponder the difference in meaning between “It’s warm?” and “Is it warm?” In the latter, the speaker genuinely doesn’t know whether it’s warm. In the former, it seems almost like the speaker thinks it’s not warm, and is asking for re-confirmation."

Aren’t “It’s warm?” and “Is it warm?” "Closed questions?" If I want to reply to either of them, can I say:

Yes, it is. = Positive answer

Or

No, it is not. = Negative answer

[bhaisahab]

"It’s interesting to ponder the difference in meaning between “It’s warm?” and “Is it warm?” In the latter, the speaker genuinely doesn’t know whether it’s warm. In the former, it seems almost like the speaker thinks it’s not warm, and is asking for re-confirmation."

Aren’t “It’s warm?” and “Is it warm?” "Closed questions?" If I want to reply to either of them, can I say:

Yes, it is. = Positive answer

Or

No, it is not. = Negative answer

"It's warm?" is not natural as a question.

[emsr2d2]

I would only expect to hear "It's warm?" as a question with a note of surprise or incredulity, in response to an unexpected statement of "It's warm".

John (by telephone): Hi Susan. I'm here in Antarctica. It's warm!
Susan: It's warm?
John: Yup, really warm. Surprising, isn't it!