First, ask who is the one speak half true half false,raise their hand.
The people who don't raise their hand is the people who speak true.
The people raise their hand is speak flase.
The guy who is random will in one of the group.
So reapeat the question, the one who change his answer is that guy. 作者: simoon 時間: 2008-12-4 12:25
If he speaks is always ture, then ask who is the guy who speak speak half true half false.
One question ko.