BRAIN TEASERS
The Easiest Tasks (page 645)

The Easiest Tasks (page 645)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 6441 to 6450.
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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: 2
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Find number abc

If 925ab - 117bc = a0ac9 find number abc. Multiple solutions may exist.
Correct answers: 2
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#brainteasers #math
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MAGIC SQUARE: Calculate A+B+C

The aim is to place the some numbers from the list (2, 3, 4, 8, 9, 10, 14, 25, 26, 30, 44, 67) 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: 2
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#brainteasers #math #magicsquare

Adam and Eve

Sometimes women are overly suspicious of their husbands.... When Adam stayed out very late for a few nights, Eve became upset.

"You're running around with other women," she told her mate.

"Eve, honey, you're being unreasonable," Adam responded. "You know you're the only woman on earth."

The quarrel continued until Adam fell asleep, only to be awakened by a strange pain in the chest. It was his darling Eve poking him rather vigorously about the torso.

"What do you think you're doing?" Adam demanded.

"Counting your ribs," said Eve.

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Find number abc

If a3554 - c58c3 = 4bb4c find number abc. Multiple solutions may exist.
Correct answers: 2
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#brainteasers #math
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Calculate the number 1610

NUMBERMANIA: Calculate the number 1610 using numbers [1, 1, 1, 5, 13, 773] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 2
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#brainteasers #math #numbermania
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Calculate the number 5267

NUMBERMANIA: Calculate the number 5267 using numbers [3, 7, 3, 9, 40, 762] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 2
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#brainteasers #math #numbermania
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Calculate the number 4141

NUMBERMANIA: Calculate the number 4141 using numbers [4, 9, 1, 6, 45, 776] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 2
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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 (4, 16, 17, 19, 22, 23, 25, 44, 45, 47, 50, 70) 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: 2
CHECK ANSWER
#brainteasers #math #magicsquare
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Find number abc

If ac9b8 - 4914b = 2aac8 find number abc. Multiple solutions may exist.
Correct answers: 2
CHECK ANSWER
#brainteasers #math
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Calculate the number 9040

NUMBERMANIA: Calculate the number 9040 using numbers [1, 3, 9, 7, 53, 986] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 2
CHECK ANSWER
#brainteasers #math #numbermania
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Sir William Ramsay

Born 2 Oct 1852; died 23 Jul 1916 at age 63. Scottish chemist who discovered who discovered neon, krypton and xenon and co-discovered argon, radon, calcium and barium. He was awarded the Nobel Prize in Chemistry in 1904, “in recognition of his services in the discovery of the inert gaseous elements in air, and his determination of their place in the periodic system.” The so-called “inert gases” are now known as “noble gases” because some examples of reactions have been discovered.
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