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 5936

NUMBERMANIA: Calculate the number 5936 using numbers [1, 9, 1, 4, 61, 721] 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 2b9bb + baaa7 = c2a22 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
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#brainteasers #mastermind

A little girl asked her mom...

A little girl asked her mom, "Mom, may I take the dog for a walk around the block?"
Her mom says, "No, because the dog is in heat."
"What's that mean?" asked the child.
"Go ask your father. I think he's in the garage."
The little girl goes to the garage and says, "Dad, can I take Susie for a walk around the block. I asked mom but she said the dog was in heat and that should ask you."
Her dad said, "Bring Susie over here."
He took a rag, soaked it with gasoline, and scrubbed the dog's butt with it and said, "OK, you can go now but keep Susie on the leash and only go one time around the block."
The little girl left and returned a few minutes later with no dog on the leash.
Her dad said, "Where's Susie?"
The little girl said, "Susie ran out of gas about halfway down the block and there's another dog pushing her home."
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Calculate the number 401

NUMBERMANIA: Calculate the number 401 using numbers [3, 7, 3, 1, 26, 340] 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 (1, 4, 5, 15, 18, 19, 23, 70, 73, 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 acbba + aa615 = 16b613 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 495

NUMBERMANIA: Calculate the number 495 using numbers [6, 2, 2, 6, 27, 445] 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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Calculate the number 1532

NUMBERMANIA: Calculate the number 1532 using numbers [5, 9, 4, 2, 69, 426] 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 (17, 19, 20, 22, 24, 25, 27, 33, 36, 41) 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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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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Push-button phone

In 1959, an experimental push-button phone was tested by the Southern New England Telephone Company (New Haven, Conn.), to see if customers dial fewer wrong numbers using the new design.
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