A blind American man taught himself to navigate using echolocation. His hobbies include hiking and mountain-biking, and he has now trained over 500 students in his ‘tongue-click’ technique.
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McDonald's serves 75 hamburgers every second, according to the company’s Operations and Training Manual.
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Singapore has the world’s highest percentage of millionaires, with one out of every six households having at least $1,000,000 US dollars in disposable wealth.
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A woman named Rachel Krishevsky who died at age 99 had 1,400 direct descendants.
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