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Logic Puzzle 1B

 Reviewing the things said by the bishops, it is not possible that they always lie, since the first and last statements cannot both be false. So, by believing that bishops always lie, the White Queen must believe that neither of the bishops is red and they are different colours, which is impossible. Clearly at least one bishop must actually have told the truth, which makes the second knight's statement false, and since he did not tell the truth, the first knight's statement is also false. The individual statements are merely false, not impossible, but to believe them even knowing that they lead to impossible results could be counted as believing two more impossible things.

(This is the solution to the second part of the logic puzzle posted to my blog on March 10, 2017)