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Only True Geniuses Can Pass This Deduction Test. Can You?
by Becky
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Even if you're not Sherlock Holmes, you probably have one or two deductive bones in your body. We know that not everyone will be able to figure out every statement on this quiz. Are you game?

Most deductive arguments follow the classic reasoning pattern of if A = B and B = C, then A = C. But, just because a statement has these three components does not make it correct. To ensure that the deduction (C) is correct, the arguments (A and B) must also be correct. Consider this argument: All presidents live in the White House. George Washington was a president. Therefore, George Washington lived in the White House. Now, we know that, in fact, George Washington, as president, did not live in the White House because construction was not completed on the presidential residence until November 1800. The first statement in this argument, "All presidents live in the White House," is false. If one of the statements is false (even though the second argument, "George Washington was a president," is true), then the deduction must also be false. If course, this requires a bit of knowledge, because if you didn't know that Washington did not live in the White House, you might assume that this deduction was valid.

Are you a genius? Prove it by acing this quiz.

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