Find the right combination
[1074] 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: 62 - The first user who solved this task is Irena Katic Kuzmanovic
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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: 62
The first user who solved this task is Irena Katic Kuzmanovic.
#brainteasers #mastermind
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The only way to pull off a Sun...

The only way to pull off a Sunday afternoon quickie with their 8-year-old son in the apartment was to send him out on the balcony with a popsicle and tell him to report on all the neighborhood activities.He began his commentary as his parents put their plan into operation.
"There's a car being towed from the parking lot," he shouted.A few moments passed.
"An ambulance just drove by."
A few moments later, "Looks like the Anderson's have company," he called out."Matt's riding a new bike."
A few moments later, "Looks like the Sanders are moving.""Jason is on his skate board."
A few more moments, "The Coopers are having sex."
Startled, his mother and dad shot up in bed. Dad cautiously called out, "How do you know they are having sex?"
"Jimmy Cooper is standing on his balcony with a popsicle too."
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Steam percussion rock drill

In 1849, Joseph J. Couch received the first U.S. patent for a steam-powered percussion rock drill (No. 6,237) as “improved machinery for drilling rocks”. It was driven by steam power and acted without need of gravity supplying any part of the motion. A sliding drill support frame enabled it to be operated in any desirable position or direction. Power was supplied by the piston of a steam cylinder connected to a suitable steam generator. The machine would be held stationary as the rotating drill was thrown against the rock. The drill rod would disengaged at each stroke, and travel with its own momentum, so that upon striking the rock, the shock was not transmitted back to the rest of the machine, preventing it from damage. After each blow, the tool was seized by means of friction-grips to retract and repeat.«
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