Was the old man ever really in danger? (spoilers)
We know he wanted to play to feel alive again, but would he really have been killed in the games had he failed?
I would have to think that he selected the games based on what he knew he could win. Look at his lengthy explanation on how to win at tug of war, even when outmatched. Then when he was playing marbles he read his opponent like a book.
I'm inclined to believe he was really in danger.