Twenty-oneTrivia brain teasers have some element of trivia in them, but they are not just pure trivia questions.
Kim (a U.S.A. resident) is exactly twenty years and three months old when she visits her elderly grandmother in China. When she arrives, her grandmother asks her how old she is now. When Kim answers twenty-one, she isn't lying. How is that possible?
AnswerAccording to some Chinese customs, some Chinese count the nine months in the womb to your age. If Kim was twenty and three months, the additional nine months would make her twenty-one.
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