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MATH PUZZLE: Can you replace...

MATH PUZZLE: Can you replace the question mark with a number?

Correct answers: 4204

The first user who solved this task is Donya Sayah30.

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Unlocking Your Car

Two blondes were recently observed in a parking lot trying to unlock the door of their Mercedes with a coat hanger. Here is their dialogue:
Blonde One: I can't seem to get this door unlocked!
Blonde Two: Well, you'd better hurry up and try harder! it's starting to rain, and the top is down!

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Isabella Karle

Born 2 Dec 1921.(née Lugoski) American chemist who notable achievements include the development of her "Symbolic Addition Procedure", which has become the method of choice for structure determination from X-ray diffraction data on crystalline materials, even in computerized programs. It dramatically increased the speed and accuracy of chemical and biomedical analysis. Her work has had a significant impact on the fields of molecular biology, chemistry, physics, metallurgy, geology, genetics, and pharmacology, contributing to the discoveries of new drugs to combat many diseases. In 1969 she determined the crystal structure of toxins found in the venom of frogs in South America, which are used in the study of nerve transmission.

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