BRAIN TEASERS
Brain Teasers (page 214)

Brain Teasers (page 214)

puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, sport... These are the tasks listed 2131 to 2140.
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Find number abc

If aa1bb - 4bcab = 31480 find number abc. Multiple solutions may exist.
Correct answers: 19
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math
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Calculate the number 1426

NUMBERMANIA: Calculate the number 1426 using numbers [8, 9, 1, 2, 43, 309] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 9
The first user who solved this task is Nílton Corrêa de Sousa.
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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 (2, 9, 12, 18, 23, 26, 32, 65, 68, 74) 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: 13
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math #magicsquare

One of Life's Lessons

While preaching about forgiving ones enemies, the preacher asked for a show of hands of those who were willing to forgive their enemies. About half of the congregation raised their hands. The minister continued his lection and again asked for a show of hands. This time, 80 percent of his congregation raised their hands. Not giving up, the minister continued for fifteen more minutes. When he again asked for a show of hands, all members—except one—raised their hands."Mr. Jones,” asked the minster, “are you not willing to forgive your enemies?”"I don't have any.”Mr. Jones, that is very unusual. I know you are 86-years-old. Would you please come down to the front and explain to all of us how you have lived so long without making a single enemy in the world?”Mr. Jones teetered to the front and briefly explained, “Its easy. Ive outlived every one of them.”
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Find number abc

If 3c3ab + 32bc4 = a28a9 find number abc. Multiple solutions may exist.
Correct answers: 28
The first user who solved this task is Nasrin 24 T.
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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: 16
The first user who solved this task is Nasrin 24 T.
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#brainteasers #mastermind
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Calculate the number 6159

NUMBERMANIA: Calculate the number 6159 using numbers [5, 1, 2, 9, 49, 817] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 8
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math #numbermania
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Find number abc

If 2aac8 - 21b3a = b111 find number abc. Multiple solutions may exist.
Correct answers: 28
The first user who solved this task is Nasrin 24 T.
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: 24
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 1817

NUMBERMANIA: Calculate the number 1817 using numbers [4, 4, 5, 4, 68, 475] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 9
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #numbermania
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MAGIC SQUARE: Calculate A+B+C

The aim is to place the some numbers from the list (7, 9, 10, 13, 15, 16, 25, 27, 28, 30, 44) 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: 14
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #magicsquare
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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.
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A.V. Hill

Born 26 Sep 1886; died 3 Jun 1977 at age 90. Archibald Vivian Hill was a British physiologist and biophysicist who received (with Otto Meyerhof) the 1922 Nobel Prize for Physiology or Medicine for discoveries concerning the production of heat in muscles, research which helped establish the origin of muscular force in the breakdown of carbohydrates with formation of lactic acid in the muscle. Hill's early experiments researched the effects of electrical stimulation on nerve function, the mechanical efficiency of muscle, energy processes in muscle during recovery, the interaction between oxygen and hemoglobin, and quantitative aspects of drug kinetics on muscle. Hill combined aspects of physics and biology, a discipline which he championed as biophysics.
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