What's a simple sentence?
481100
a subject and a predicate, i think... i really cannot remember either...
815094
yes, that's it... simple, right?
1031231
What? USE COMPLETE SENTENCES!!
565894
A retorical question has either a trivial or an obvious answer.
636774
What is the question??
626698
What is the question?\nOr is that just a stupid statement.
962961
Yes it is a sentence.  The term used for sentences like "quiet" or "stop" or "drink" etc., is an imperative.  In an imperative the subject of the sentence (you) is assumed, as in "you be quiet" or "you stop" or "you drink."
426485
Can you make your point in 3 sentences or less?
1079336
AND WHAT'S THE QUESTION
643837
What do you mean exactly?
870534
What are the phrases?
590745
so what is the question?
116137
K.  What's the question?
769652
what is the question here?
534639
I cannot begin to grasp what you are asking.\n\nIs it a statement, or a question?
203766
Sure. \n\n\nSee what an incomplete sentence gets you?
1114300
What is the question exactly?