BRAIN TEASERS
Monthly Archive - December 2018

Monthly Archive - December 2018

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1 to 10.
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Find number abc

If 94a58 + a64b9 = aa059c find number abc. Multiple solutions may exist.
Correct answers: 9
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math
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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: 9
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #mastermind
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Calculate the number 1783

NUMBERMANIA: Calculate the number 1783 using numbers [7, 6, 8, 3, 26, 270] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 6
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math #numbermania

Special Delivery

It was mailman George's last day on the job after 35 years of delivering the mail through all kinds of weather. When he arrived at the first house on his route, the whole family came out, roundly congratulated him, and sent him on his way with a tidy gift envelope.
At the second house they presented him with a box of fine cigars. The folks at the third house handed him a selection of terrific fishing lures.
At the next house, he was met at the door by a strikingly beautiful woman in a revealing negligee. She took him by the hand, and led him up the stairs to the bedroom where she blew his mind with the most passionate love he had ever experienced.
When he'd had enough, they went downstairs, where she fixed him a giant breakfast: eggs, potatoes, ham, sausage, blueberry waffles and fresh-squeezed orange juice. When he was truly satisfied, she poured him a cup of steaming coffee. As she was pouring, he noticed a dollar bill sticking out from under the cup's bottom edge.
"All this is just too wonderful for words," he said, "but what's the dollar for?"
"Well," she said, "last night, I told my husband that today would be your last day, and that I wanted to do something special for you. I asked him what to give you. He said, 'Screw him. Give him a dollar.'"
"Breakfast was my idea."

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MAGIC SQUARE: Calculate A*B+C

The aim is to place the some numbers from the list (15, 22, 23, 25, 29, 32, 33, 37, 38, 39, 60, 61, 67) into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A*B+C.
Correct answers: 7
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math #magicsquare
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Find number abc

If 21a4c + c10c2 = b2a7b find number abc. Multiple solutions may exist.
Correct answers: 15
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math
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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: 18
The first user who solved this task is NĂ­lton CorrĂȘa De Sousa.
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#brainteasers #mastermind
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Calculate the number 914

NUMBERMANIA: Calculate the number 914 using numbers [1, 5, 9, 5, 82, 544] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 10
The first user who solved this task is Djordje Timotijevic.
CHECK ANSWER
#brainteasers #math #numbermania
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Find number abc

If 8c4aa - ab553 = 2b9c3 find number abc. Multiple solutions may exist.
Correct answers: 25
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math
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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: 14
The first user who solved this task is Djordje Timotijevic.
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 790

NUMBERMANIA: Calculate the number 790 using numbers [9, 2, 7, 7, 16, 718] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 13
The first user who solved this task is Djordje Timotijevic.
CHECK ANSWER
#brainteasers #math #numbermania
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First airplane stamp design

In 1912, the world's first stamp to depict an airplane (a biplane) was issued in the U.S., to be available at Post Offices on 1 Jan 1913. (This came six years prior to the first U.S. airmail stamps.) It was a 20-cent Parcel Post stamp, with carmine rose red ink, titled “Aeroplane Carrying Mail,”part of a series of twelve stamps designated for parcel post. On 24 Aug 1912, Congress had authorized the U.S. Post Office to enter the parcel post business to improve service for rural areas poorly served by private delivery companies. Four stamps in the series showed workers (including 3c. "Railway Postal Clerk," 4c. "Rural Carrier" in a horse-drawn wagon). Four more had transportation methods (including a 5c. "Mail Train," 10c. "Steamship and Mail Tender," 15c."Automobile Service"), and others showed industries.«
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