Learn English – the difference between “in-between” and “between”

I realize that Stephen's answer is pretty thorough, but can't help but think that side-by-side comparison of their definitions may help a bit, so...

Question: Noun: A sentence worded or expressed so as to elicit information.

and

Invitation: A written or verbal request inviting someone to go somewhere or to do something.

So the answer to your question "Do they accomplish different things?" is "Yes". They do. question is for obtaining information, and invitation is more for giving information.

Presently has two meanings: currently and shortly. So, one difference is that shortly does not mean currently. Otherwise they mean pretty much the same thing.

Ngrams shows that shortly is more common than presently. If we take into account the fact that the results are context-agnostic and the fact that a fair portion of the uses of presently found by Ngrams was in the sense of currently, we can conclude that in the sense of soon the word shortly is far more common than presently.