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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Three older ladies...

Three older ladies were discussing the travails of getting older.

One said, "Sometimes I catch myself with a jar of mayonnaise in my hand, in front of the refrigerator, and I can't remember whether I was taking it out or putting it away."

The second lady said, "Yes, sometimes I find myself on the landing of the stairs, and I can't remember whether I was on my up, or on my way down."

The third lady chimed in, "Well, I'm glad I don't have those problems. Knock on wood." With that, she rapped her knuckles on the table, then said, "That must be the door. I'll get it."

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Norman de Bruyne

Died 7 Mar 1997 at age 92 (born 8 Nov 1904).Dutch inventor who helped to transform aircraft construction by developing strong new lightweight materials and synthetic glues. In 1928, he joined Ernest Rutherford at his Cavendish Laboratory in atomic research. Subsequently developing an interest in flying, by 1934 he started his own company, Aero Research to research his invention of a new form of synthetic glue. The long-established casein glues used until then in the building of wooden aircraft were seriously affected in hot and humid conditions. His own revolutionary cantilever-wing “Snark”monoplane utilized his new bonding methods. Later, his metal-to-metal bonding of lightweight and very strong aluminium honeycomb aircraft structures were extensively used during WW II.[Born in Chile to Dutch parents. Educated and spent most of his life in England. Late in life emigrated and took American citizenship, but returned to England.]
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