Find a missing number
[876] Find a missing number - Author: Lidija Duvnjak - #brainteasers #math - Correct Answers: 30 - The first user who solved this task is Slobodan Strelac
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Find a missing number

Author: Lidija Duvnjak
Correct answers: 30
The first user who solved this task is Slobodan Strelac.
#brainteasers #math
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John was driving when a police...

John was driving when a policeman pulled him over. He rolled down his window and said to the officer, "Is there a problem, Officer?"
"No problem at all. I just observed your safe driving and am pleased to award you a $5,000 Safe Driver Award. Congratulations. What do you think you're going to do with the money?"
John thought for a minute and said, "Well, I guess I'll go get that drivers' license."
Judi, sitting in the passenger seat said to the policeman, "Oh, don't pay attention to him -- he's just a wise guy when he's drunk and stoned."
Brian from the back seat said, "I told you guys we wouldn't get far in a stolen car!"
At that moment, there was a knock from the trunk and a muffled voice said, "Are we over the border yet?"
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Charles Gerhardt

Born 21 Aug 1816; died 19 Aug 1856 at age 39. Charles (-Frédéric) Gerhardt was a French chemist who, with Auguste Laurent, developed a classification of organic compounds. Like most chemists he was aware that the dualistic system of Jöns Berzelius was unsatisfactory and tried to create an alternative. He adopted what became known as type theory in which he thought all organic compounds were based on four main types - hydrogen, hydrogen chloride, ammonia, and water. Organic compounds were referred to these types by replacing a hydrogen atom in one of these compounds by a radical (i.e., by a group of atoms). His idea was opposed by his contemporaries and was later abandoned, but it proved important in the subsequent rationalization of structural organic chemistry.
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