BRAIN TEASERS

enter your answer and press button OK

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: 1

#brainteasers #mastermind

Register with your Google Account and start collecting points.

Check your ranking on list.

I have problems with...

“I have problems with math but with chemistry, I have solutions.”

Jokes of the day - Daily updated jokes. New jokes every day.

Follow Brain Teasers on social networks

Brain Teasers

puzzles, riddles, mathematical problems, mastermind, cinemania...

Computer pump

In 1932, the first U.S. patent for a computer pump was issued to the inventors, Robert J. Jauch, Ivan R. Farnham and Ross H. Arnold for their "Liquid Dispensing Apparatus" (No. 1,888,533). Their motorized pump both metered and displayed the exact gallons of gasoline or other liquid dispensed, and also accurately computed and showed the price in dollars and cents while delivery was made. The internal totalizer could be easily reset for any new price per gallon. It solved the problems of inaccurate delivery of volume from a visible type dispenser, and its necessary ready-reckoning card with quantity and cost tables, which needed a new card when prices changed. The Wayne Co., Fort Wayne, Indiana, marketed it from 1 Nov 1931.«

This site uses cookies to store information on your computer. Some are essential to help the site properly. Others give us insight into how the site is used and help us to optimize the user experience. See our privacy policy.