What a winning combination?
[6800] What a winning combination? - 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. - #brainteasers #mastermind - Correct Answers: 28 - The first user who solved this task is Nasrin 24 T
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What a winning combination?

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: 28
The first user who solved this task is Nasrin 24 T.
#brainteasers #mastermind
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Doc, you've got to help my husband...

"Doc, you've got to help my husband," a farmer's wife said frantically. "He thinks he's a racehorse. He wants to live in a stable; he walks on all fours and he even eats hay."
"I'm sure I can cure him," the doctor replied, "but it'll be very costly."
"Oh, money's no object," she responded. "He's already won two races."
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Black American invention

In 1894, Black American inventor Fredrick J. Loudin was issued a U.S. patent for a "Key Fastener" (No.512,308). The invention was a device designed to attach to the knob-shaft or door-handle above the key-hole and fasten the door key in place in the lock by engaging with the eyed-end of the key to keep it from being turned in the lock. As the patent described, this would prevent disengaging the key, as might otherwise be done by a burglar from the outside of the door with some suitable implement, inserted through the key-hole. Loudin's first patent was issued 12 Dec 1892 for a window "Fastener for the Meeting Rails of Sashes" that permitted the window to be locked either closed or partially opened (No. 510,432).
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