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  Word & Letter Play
Q This sentense contains two mistakes. What are the mistakes?

A First mistake: The second s in the wordsentenseshould be a c.

Second mistake: There is onlyonemistake in the sentence.

From Bernardo Recamán Santos,Challenging Brainteasers: Official American Mensa Puzzle Book.New York: Sterling Publishing Co., Inc. Originally published in Colombia by Editorial Norma S.A. under the titleJuegos y Acertijos para la Enseñanza de las Matemáticas