Knight or Knave? - 1Level pending
There are three persons A,B and C, each a knight or a knave. A and B make the following statements:
A : "All of us are knaves."
B : "Exactly one of us is a knight."
What is C, a knight, or a knave?
Details and Assumptions:
A knight is a person who always speaks the truth & a knave always speaks lies.
This problem is the part of my set Is This What You Call Logic?!