From my own point of view, if I look at a 'question' and it goes beyond the screen I'm looking at I rarely read all the way to the end. Is there an optimum length to encourage others to read to the end and ultimately answer?
Should you ask more than one question in the same post? and even as I'm typing this I'm seeing the irony in my question(s).
The question should be short. If the question is preceded by a wall of text, I read the first few lines, scan the middle, then jump to the end, and track back as needed if I don't understand the question. I don't preface a question with a lead up to the question. If the question is not understood people will ask for an explanation, which then I'll provide but not before.
As a rough guide I would have thought that so long as the reader hasn't lost the will to live before getting to the end of it you've probably got it about right
What if we came in without any?
A question follows the same rules as a statement. It should be no longer than is required to present the needed information unambiguously.
I try to keep it short and sweet. Ihave a short attention span these days.LOL