BRAIN TEASERS
The Most Difficult Tasks (page 2)

The Most Difficult Tasks (page 2)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 11 to 20.
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MAGIC SQUARE: Calculate A*B+C

The aim is to place the some numbers from the list (7, 8, 11, 20, 21, 24, 49, 59, 66, 67, 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: 0
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#brainteasers #math #magicsquare
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Find number abc

If 9c787 + bb2ab = c3a05c find number abc. Multiple solutions may exist.
Correct answers: 0
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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: 0
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#brainteasers #mastermind

Act Your Age

When the new activities director for the rec center walked in, all us retirees quickly took notice. She was 20-something and gorgeous. My buddy whispered, “She makes me wish I was 30 years older.”
“Don’t you mean 30 years younger?” I asked.
“No. If I were 30 years younger, I’d still never have a chance with a woman like that. If I were 30 years older, it wouldn’t bother me so much.”

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Calculate the number 2102

NUMBERMANIA: Calculate the number 2102 using numbers [8, 3, 1, 6, 23, 195] 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 3c8a6 + c660a = abc0c 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 8773

NUMBERMANIA: Calculate the number 8773 using numbers [5, 8, 8, 1, 97, 668] 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 (6, 7, 9, 10, 11, 12, 19, 22, 24, 60) 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 ac3a7 - cbb1c = c3a4a find number abc. Multiple solutions may exist.
Correct answers: 0
CHECK ANSWER
#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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Giovanni Riccioli

Died 25 Jun 1671 at age 73 (born 17 Apr 1598).Giovanni Battista Riccioli was an Italian astronomer who was the first to observe (1650) a double star (two stars so close together that they appear to be one) - Mizar in Ursa Major, the middle star in the handle of the Big Dipper. He also discovered satellite shadows on Jupiter. In 1651, he assigned the majority of the lunar feature names in current use. He named the more prominent features after famous astronomers, scientists and philosophers, while the large dark and smooth areas he called "seas" or "maria". The lunar seas were named after moods (Seas of Tranquillity, Serenity) or terrestrial phenomena (Sea of Rains, Ocean or Storms) His map was published in Almagestum Novum in1651.[Image: Frontispiece from Riccioli's Almagestum novum, 1651]
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