Which number should replace the question mark?
[400] Which number should replace the question mark? - FUNNY MATH: Which number should replace the question mark? - #brainteasers #math #riddles - Correct Answers: 37 - The first user who solved this task is Sanja Šabović
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Which number should replace the question mark?

FUNNY MATH: Which number should replace the question mark?
Correct answers: 37
The first user who solved this task is Sanja Šabović.
#brainteasers #math #riddles
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A couple, desperate to conceiv...

A couple, desperate to conceive a child, went to their priest and asked him to pray for them. "I'm going on a sabbatical to Rome," he replied, "and while I'm there, I'll light a candle for you."
When the priest returned three years later, he went to the couple's house and found the wife pregnant, busily attending to two sets of twins. Elated, the priest asked her where her husband was so that he could congratulate him.
"He's gone to Rome, to blow that candle out" came the harried reply.
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Maria Telkes

Died 2 Dec 1995 at age 94 (born 12 Dec 1900).Hungarian-American physical chemist who pioneered in the application of solar energy to water distillation and home heating. She immigrated to the U.S. in 1925, worked as a biophysicist (1926-37), and naturalized in 1937. As a civilian adviser to the U.S. Office of Scientific Research and Development during WW II, she worked out a solar heated water distillation system to make sea water potable. In the late 1940's, she designed a system of chemical storage of solar energy for the first solar-heated house, a project of MIT constructed t in Dover, Massachusetts. She developed a solar-powered stove, and in the 1970s, experimented with an air-conditioning system that stored cool night air for use during the heat of the next day.
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