BRAIN TEASERS

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Which is a winning combination of digits?

The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.

Correct answers: 84

The first user who solved this task is James Lillard.

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I'm sorry, said the clerk in flower...

"I'm sorry," said the clerk in flower shop, "we don't have potted geraniums. Could you use African violets instead?"
Replied the customer sadly, "No, it was geraniums my wife told me to water while she was gone."

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U.S. prototype meter and kilogram

In 1890, the seals were broken on prototype meter No. 27 and prototype kilogram No. 20 in the Cabinet room of the Executive Mansion by U.S. President Benjamin Harrison, observed by the Secretary of State, the Secretary of the Treasury, and invited guests. Following the Metric Convention (20 May 1875), which the U.S. had signed, prototype measures had been prepared of platinum-iridium alloy from the international prototypes in France, and were ready for distribution on 26 Sep 1889. Two of each were furnished to the U.S.: kilograms Nos. 21 and 27, and meters Nos. 4 and 20. Those on which the seals were broken were thereby adopted as the U.S. national prototypes, which would thereafter be used to define all measurements of length and weight in the U.S.«

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