Who's Right?

Logic Level 3

Charles and his friends, Winston and Joseph, took a test. Upon reviewing the first question, they say as follows:

  • Charles: "I'm right."
  • Joseph: "Two of us are right."
  • Winston: "None of us are right."

Their teacher comes up to them with the answer sheet and says that two of their statements are correct. Of Charles, Winston, and Joseph, whose answers (not their statements) must be correct no matter what?

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