I do believe we are making this more difficult than it should be, I'm sure we are all wise enough to concoct our own watertight versions. if you need someone elses advice on such a trivial point then maybe you are part of that generation of people who only asks questions and never figures out...
3 Years Later...
Two Men. One "The Liar" who always lies. One "The Truth" who always tells the truth. You are not told who is who. So, find out who is who by asking only one question.
Your question should be: What would the other man say if I asked him who you are?
(Although you do not...