BRAIN TEASERS
The Most Difficult Tasks

The Most Difficult Tasks

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1 to 10.
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Calculate the number 806

NUMBERMANIA: Calculate the number 806 using numbers [1, 8, 5, 8, 70, 731] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
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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 (5, 6, 11, 29, 30, 35, 38, 59, 68, 69, 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: 0
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#brainteasers #math #magicsquare
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Find number abc

If 90a36 + c7c51 = 17cbc7 find number abc. Multiple solutions may exist.
Correct answers: 0
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#brainteasers #math

We all have times when life feels hard

We all have times when life feels hard; when we’re frustrated and tired and just want to hide away. If that’s you right now, don’t worry – every caterpillar has to rest to become a butterfly and you’ll soon find your wings again. In the mean time, let your Angels wrap you in theirs. You are so loved.
~Anna Taylor

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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: 0
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 9583

NUMBERMANIA: Calculate the number 9583 using numbers [9, 7, 4, 2, 24, 734] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
CHECK ANSWER
#brainteasers #math #numbermania
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Find number abc

If c7bca + 8b558 = aa7589 find number abc. Multiple solutions may exist.
Correct answers: 0
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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: 0
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 9492

NUMBERMANIA: Calculate the number 9492 using numbers [6, 3, 8, 4, 85, 971] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
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 (5, 7, 11, 12, 13, 14, 19, 20, 21, 28, 53, 81) 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: 0
CHECK ANSWER
#brainteasers #math #magicsquare
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Find number abc

If 6a277 + 2b0ac = ccbba find number abc. Multiple solutions may exist.
Correct answers: 0
CHECK ANSWER
#brainteasers #math
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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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Heart Surgery

In 1963, the first implantation of an intrathoracic left artificial ventricle in a human being was made by Dr. E. Stanley Crawford, at the Baylor University College of Medicine, Methodist Hospital, Houston Tx. USA. The original prototype is kept and exhibited at the Smithsonian Institution, Washington, DC. Within a few years, on 4 Apr 1969, the first total artificial heart was implanted, used as a bridge to heart transplantation by Dr. Denton A. Cooley, at the Texas Heart Institute, Houston Tx. USA.
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