Gold BarsScience brain teasers require understanding of the physical or biological world and the laws that govern it.
There was a millionaire who loved collecting gold. He bought ten solid gold shapes from a man, but the man proposed a bet. He said:
"One of these shapes is fake. It is made from a metal that looks exactly like gold. The only difference is that it is 1 gram lighter per 10 sq cm. If you can find the fake, you can have all of the bars for free". So the man weighed all of the bars, and to his surprise, they all weighed the same. Because of their strange shapes, he could not simply measure them. How can the man discover the fake without any measuring tools? What Next?
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