Math Puzzles and Word Problems

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Multiple Choice

There are three people (Alex, Brook and Cody), one of whom is a knight, one a knave, and one a spy. The knight always tells the truth, the knave always lies, and the spy can either lie or tell the truth. Alex says: "Cody is a knave." Brook says: "Alex is a knight." Cody says: "I am the spy." who the knave, and who the spy?

  1. Alex is a Spy,Cody is a Knave
  2. Brook is a Spy,Cody is a Knave
  3. Alex is a Spy,Brook is a Knave
  4. Cody is a Spy,Brook is a Knave
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