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Find number abc

If 691c5 - a492a = a41b2 find number abc. Multiple solutions may exist.

Correct answers: 26

The first user who solved this task is Nílton Corrêa de Sousa.

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Nightie

A man and his wife were celebrating their 50th anniversary, so he bought her a $100 see-through nightie.
That night, she was getting ready for bed and realized the nightie was still in its box downstairs.

Walking naked through the house, she passed her husband who said: "Jesus, for $100 they could've at least ironed it!"

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Gardner Quincy Colton

Died 9 Aug 1898 at age 84 (born 7 Feb 1814). American lecturer who was the first to administer nitrous oxide as an anaesthetic. This followed when one of Colton's public demonstrations of the properties of nitrous oxide, was attended by a dentist. It was Horace Wells, who observed a volunteer paid no heed to any pain when he accidentally gashed leg while stumbling around under the influence of a moderate dose of the gas. Wells suggested the use of the gas as an anaesthetic, and even volunteered to have Colton administer the nitrous oxide while one of Wells' molars was extracted by his partner, dentist John Riggs (11 Dec 1844). Between 1864-97, Colton as anaesthetist administered nitrous oxide while his dental colleagues successfully extracted tens of thousands of teeth.«

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