Find the right combination
[8201] Find the right 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: 0
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Find the right 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: 0
#brainteasers #mastermind
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An Inscription Problem

According to the Knight-Ridder News Service, the inscription on the metal bands used by the U.S. Department of the Interior to tag migratory birds has been changed. The bands used to bear the address of the Washington Biological Survey, abbreviated, "Wash. Biol. Surv." until the agency received the following letter from an Arkansas camper:
"Dear Sirs: While camping last week I shot one of your birds. I think it was a crow. I followed the cooking instructions on the leg tag and I want to tell you it was horrible."
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Gas burner patent

In 1899, a gas burner was patented by Benjamin F. Jackson, a black American inventor (No. 622,482). His design improved the equal distribution of air under pressure to ensure more complete combusion of the fuel gas. He assigned the patent to Robert Hoe, Theodore Mead and Charles Carpenter of New York City. The previous year, he took out patents on a "Heating Apparatus" and a "Matrix Drying Apparatus."[Image: gas burner vertical section and plan views]
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