BRAIN TEASERS
Brain Teasers (page 271)

Brain Teasers (page 271)

puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, sport... These are the tasks listed 2701 to 2710.
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Find number abc

If 80c92 - aa21b = 2a479 find number abc. Multiple solutions may exist.
Correct answers: 26
The first user who solved this task is Nasrin 24 T.
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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: 26
The first user who solved this task is Nasrin 24 T.
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#brainteasers #mastermind
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Calculate the number 6648

NUMBERMANIA: Calculate the number 6648 using numbers [6, 7, 9, 1, 10, 443] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 13
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math #numbermania

The first Apple iPhone in Fran...

The first Apple iPhone in France was likened to a Pomme Pilot.
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MAGIC SQUARE: Calculate A+B*C

The aim is to place the some numbers from the list (3, 5, 7, 10, 12, 13, 18, 36, 69, 71, 77, 78) 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
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Find number abc

If c7a57 + ac7b2 = 812ab find number abc. Multiple solutions may exist.
Correct answers: 25
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: 23
The first user who solved this task is Nasrin 24 T.
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#brainteasers #mastermind
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Calculate the number 1937

NUMBERMANIA: Calculate the number 1937 using numbers [1, 2, 6, 3, 73, 639] 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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Find number abc

If c780b - a2cb0 = bbabb find number abc. Multiple solutions may exist.
Correct answers: 25
The first user who solved this task is Nasrin 24 T.
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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: 24
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 2234

NUMBERMANIA: Calculate the number 2234 using numbers [6, 2, 8, 7, 14, 696] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 9
The first user who solved this task is Thinh Ddh.
CHECK ANSWER
#brainteasers #math #numbermania
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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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First GB human blood transfusion

In 1818, the first transfusion in Great Britain using human blood (as opposed to animal blood) took place at Guy's Hospital, London, by Dr. James Blundell. The patient, Mr. Brazier, was beyond hope of recovery due to incurable scirrhous disease of the pyloric orifice of the stomach, but he was anxious that the procedure be tried. Using an instrument of his own design, the doctor transfused of between 12 to 14 ounces of donated human blood into a vein in the patient's arm. For 30 or 40 minutes there seemed benefit, as his pulse and body temperature increased. However, he died 56 hours after the treatment. Ten years later, Dr. Blundell saved a patient's life with a blood transfusion, but by then, Dr. Doubleday had already, in 1825, become the first to achieve a life-saving success.«
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