> The idea behind the app is this - every question in this world can be asked in a simple short way, even complex questions can be asked in multiple short questions. The same goes with answers - every answer can be broken into multiple short answers.

Are you sure this is actually true, or is it just wishful thinking?

Complicated concepts cannot always be distilled into 140 characters, and not all questions can be answered in such a short space or indeed, in such a format. I would imagine that the vast majority of the questions and answers will be trivial, which in itself is not necessarily a bad thing, but it does mean that for any detail, users will need to look elsewhere.

This feels basically like one of those Twitter Poll apps, although many (most?) charge for their features.

Don't give up, but I think you need to focus on detail - otherwise this is just Jelly (https://itunes.apple.com/gb/app/jelly/id685652528?mt=8) with a less interesting UI.