Friday, May 8, 2009

Logic puzzle: the yes/no world

There is world where the people answers just "Yes" or "No". People are divided in two groups: the ones who always says the truth and the ones who always says the false. Can you formulate a question which cannot be answered by any of the two groups but is a yes/no question?

1 comment:

  1. I'm starting to work with logic puzzles. This is a nice one. Basically you are requested to create a yes/no question, which is neither true nor false. You may want to combine a false/true question into something more complex.