“Did 0bama go to Pakistan in 1981?”
He claims that he did and it was perfectly legal for him to do so as an American citizen.
“How long was he in Pakistan?”
That seems rather irrelevant.
“How long was he in Asia?”
I have no idea.
“What other countries did he visit or live in during 1981 and 1982?”
Fortunately, the State Department does not keep track of what nations US citizens visit.
“What passport was he traveling under? “
I imagine he would have used his American Passport.