questions avengers endgame left unanswered

I found this video on youtube about 25 questions avengers endgame left unanswered

I’m not sure why Falcon is carrying the torch of Captain America, they should just have him stay Falcon. I don’t know why Marvel has to have a new Captain

@AssertingValor: I like to know how cap returned the stones because he took them in a case but not in there containers and you have to sacrifice someone to get the soul stone so how would you give it back ?

The real question is why did ant man not go up Thanos' butt? Would have solved all their problems.

@AssertingValor: And just retire the shield ? Nah

@kgb725: should have introduces Isaiah Bradley or something... cause now we will have no Falcon

@AssertingValor: We will have Captain Falcon!

My questions :

How come Cap aged so much but Bucky didnt ?

What did Cap do in the timeline ?

How did Cap get back ?

How the hell was the timeline not screwed up because i'm not convinced they did everything perfect, without ruining something ?

Will i ever get to see Adam Warlock ?

i like to also know what happened to betty ross in avengers age of ultron banner and natasha were a item so what happen to betty ? oh and what about the agents of shield why no coulson at stark's funeral ?

@AssertingValor: @kgb725: @kgb725: @djudgment: