Hello everyone, i'm new here please give me some guidance... 
Some question :-
1. Do bitcoin will be exhausted?
2. Who's really satoshi nakomoto?
3. Mining will be profitable for future?
1) No never. It will not until this planet exist also will keep on growing.Some question :-
1. Do bitcoin will be exhausted?
2. Who's really satoshi nakomoto?
3. Mining will be profitable for future?
2) He is the creator of bitcoin. No one knows him yet !
3) In my view, mining will be profitable with future prices always. Mine and hold. It means you need to pay from your pocket for mining. But your mined coins will compensate your expenses after some time.