Replace the question mark with a number
[2563] Replace the question mark with a number - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 638 - The first user who solved this task is Donya Sayah30
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Replace the question mark with a number

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 638
The first user who solved this task is Donya Sayah30.
#brainteasers #math #riddles
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At The End of Your Rope?

There were eleven people hanging onto a rope that came down from a plane. Ten were blonde, and one was a brunette. They all decided that one person should get off because if they didn't, then the rope would break and everyone would die. No one could decide who should go, so finally the brunette said, "I'll get off." After a really touching speech from the brunette saying she would get off, all of the blondes started clapping.
(Problem solved.)
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Percy L. Julian

Died 19 Apr 1975 at age 76 (born 11 Apr 1899).African-American chemist, whose 100 patents include the synthesis of cortisone, hormones, and other products from soybeans. He isolated from plants simple compounds and investigated how they were naturally altered into chemicals essential to life, including vitamins and hormones; then he attempted to create the compounds artificially. Early in his career he synthesized physostigmine, a glaucoma drug. A refined soya protein was the basis of Aero-Foam, a foam fire extinguisher used by the U.S. Navy in WW II. His efforts led to quantity production of the hormones progesterone (female), testosterone (male) and cortisone drugs. In 1950, his home in an all-white suburb was bombed and burned.«
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