BRAIN TEASERS
Monthly Archive - January 2022

Monthly Archive - January 2022

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1 to 10.
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Calculate the number 787

NUMBERMANIA: Calculate the number 787 using numbers [1, 4, 8, 8, 23, 752] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 6
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#brainteasers #math #numbermania
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Find number abc

If a84ab - 7b6c4 = 27856 find number abc. Multiple solutions may exist.
Correct answers: 12
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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: 11
CHECK ANSWER
#brainteasers #mastermind

A blonde pilot decided she wan...

A blonde pilot decided she wanted to learn how to fly a helicopter.
She went to the airport, but the only one available was a solo-helicopter. The Instructor figured he could let her go up alone since she was already a pilot for small planes and he could instruct her by radio.
So up the blonde went. She reached 1,000 feet and everything was going smoothly. She reached 2,000 feet. The blonde and the Instructor kept talking via radio. Everything was running smoothly. At 3,000 feet the helicopter suddenly came down quickly! It skimmed the top of some trees and crash landed in the woods. The Instructor jumped into his jeep and rushed out to see if the blonde was okay. As he reached the edge of the woods, the blonde was walking out.
"What happened?" the Instructor asked. "All was going so well until you reached 3000 feet. What happened then?"
"Well," began the blonde, "I got cold. So I turned off the ceiling fan."
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Calculate the number 2247

NUMBERMANIA: Calculate the number 2247 using numbers [3, 8, 6, 3, 44, 289] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 4
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#brainteasers #math #numbermania
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MAGIC SQUARE: Calculate A+B+C

The aim is to place the some numbers from the list (6, 8, 10, 11, 12, 15, 31, 33, 36, 59, 97) 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: 3
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#brainteasers #math #magicsquare
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Find number abc

If ba3b6 + a977a = ca101 find number abc. Multiple solutions may exist.
Correct answers: 17
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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: 8
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 329

NUMBERMANIA: Calculate the number 329 using numbers [3, 6, 9, 4, 53, 175] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 3
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#brainteasers #math #numbermania
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Find number abc

If c8b0a - 1a0c1 = 8a613 find number abc. Multiple solutions may exist.
Correct answers: 8
CHECK ANSWER
#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: 14
CHECK ANSWER
#brainteasers #mastermind
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Thomas Francis Jr.

Born 15 Jul 1900; died 1 Oct 1969 at age 69.American physician, physician, virologist and epidemiologist who was the first in the U.S. to isolate the virus influenza A (1934) and showed that there are other strains, such as influenza B (1940). Francis developed a polyvalent vaccine effective against both strains and conducted research that led to the development of antiserums for the treatment of pneumonia. In 1953, he was asked to design, supervise, and evaluate the field trials of the polio vaccine developed by his former protegé, Jonas Salk. The trials were of unprecedented scope and magnitude, involving about 1.8 million children from across the U.S., Canada, and Finland. On 12 Apr 1955, Francis announced that the Salk vaccine was indeed "safe, effective, and potent."«
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