BRAIN TEASERS
The Most Difficult Tasks (page 40)

The Most Difficult Tasks (page 40)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 391 to 400.
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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
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#brainteasers #mastermind
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Calculate the number 1895

NUMBERMANIA: Calculate the number 1895 using numbers [3, 6, 6, 4, 52, 535] 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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Find number abc

If abaab - c3a8b = 2699b find number abc. Multiple solutions may exist.
Correct answers: 0
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#brainteasers #math

Eating Some Peanuts


There was an old man whose family could no longer afford to take care of him. So the family decided that a nusring for the aged would be appropriate.
Of course the old man rejected the idea, but no sooner he was convinced that it was the right thing to do. On his first day at the home, he spent most of his time laying in bed reflecting on life, feeling lonely. A while later, an orderly stopped by to seee how the old man's first day was going.
"How you doing today?", she said to the old man, "First day I see". The Old man replied with a nod.
In no time the two began talking up a storm. As the conversation began to drag on, the orderly was eyeing the room filled with fresh flowers, cards and balloons from friends and relatives. She noticed a bowl full of peanuts sitting on top of the table next to the bed, and help herself to a handful.
As the two continued to converse with each other, the orderly kept eating more helpings of the peanuts. She look at her watch and noticed that nearly 2 hours had passed and said, "My goodness, the time has gone by quickly. I have to tend to other people here too." "That's okay.", said the old man, "I feel so much better being able to talk to someone." Looking into the bowl the orderly said, "I feel awful! I ate almost all of your peanuts!" The old man responded, "That's okay. Ever since I got these false teeth, all I could do was suck the chocolate off of them anyhow."
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Calculate the number 6637

NUMBERMANIA: Calculate the number 6637 using numbers [5, 9, 2, 1, 60, 749] 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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Find number abc

If b1435 - 1ca1b = 4ab19 find number abc. Multiple solutions may exist.
Correct answers: 0
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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: 0
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 4414

NUMBERMANIA: Calculate the number 4414 using numbers [5, 4, 8, 9, 85, 281] 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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Find number abc

If b1bc1 + 448aa = 761c1 find number abc. Multiple solutions may exist.
Correct answers: 0
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#brainteasers #math
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Calculate the number 1443

NUMBERMANIA: Calculate the number 1443 using numbers [2, 4, 5, 8, 22, 233] 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 (14, 16, 25, 29, 31, 40, 68, 70, 77, 79, 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
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#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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Edison patent

In 1891, Thomas A. Edison was issued U.S. patent No. 460122 for a "Process of and Apparatus for Generating Electricity" and No. 460123 for a "Phonogram-Blank Carrier."
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