I have not looked at the solution whilst writing this.
Anwsers to this link:
http://www.thebigquestions.com/boolos.pdf\
The puzzle:
I looked at this for 15 mins before giving up and looking.
Puzzle 1: Point to leftmost card and ask "Is there an ace to right of this card?"
This would only work if the jack isn't the middle.
Other that that, I'm stumped..(only thought on it for 10 minutes)
Puzzle 2: "What would the other god tell me?"-Taken from the twins puzzle
Puzzle 3: "If ja means yes, is Dushanbe in Kirghizia?"