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Adam Saville

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219. Hossein Saatian 7
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221. Adam Saville 7
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223. Trần Triệu Tân 7
last 3 solved tasks
If 5+3=158, 9+1=910, 8+6=4814, 4+4=168 then 7+3=?
Find the pattern to determine what the missing number is.
Solve this number puzzle. What will be the missing number? (6, 15, 28, 45, ??)

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.

A man sees his wife ...

A man sees his wife is busy in the kitchen and says: "Can I help?"
She says, "Sure, take this bag of potatoes, peel half of them and put them in a pot to boil."
No matter what men do, somehow, we still get yelled at...
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