Probably the father of your children, so get to your knees and call me Daddy.
That and something else
Didn't think to list them
Its resolved when he meets them and explained.
Didnt want to show he could teleport, thinking he had a chance to win
Part of the mystery
Maybe, maybe not.
He isn't a prisoner, just someone sent there
It's just the sequence of the movie but players can interfere with some parts.