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Nearly two-third of the jewelry and watch brands surveyed were classified as “Challenged” or “Feeble,” based on the findings of the Digital IQ Index: Watches & Jewelry. Only two brands, Tiffany & Co.

Who has the highest IQ in history? One answer would be: a 10-year-old girl from Missouri. In 1956, according to lore, she took a version of the Stanford-Binet IQ test and recorded a mental age of 22 ...