BRAIN TEASERS
Brain Teasers (page 270)

Brain Teasers (page 270)

puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, sport... These are the tasks listed 2691 to 2700.
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Find number abc

If 8b73c - 777ca = 3baa find number abc. Multiple solutions may exist.
Correct answers: 22
The first user who solved this task is Nílton Corrêa de Sousa.
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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: 22
The first user who solved this task is Fazil Hashim.
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#brainteasers #mastermind
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Calculate the number 808

NUMBERMANIA: Calculate the number 808 using numbers [4, 2, 9, 4, 60, 140] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 11
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math #numbermania

A husband and wife are moving...

A husband and wife are moving out of their house and are starting to box everything up. The husband finds a box under the bed, pulls it out, and looks inside, where he finds two eggs and about $8,000. He approaches the wife and asks, "What are the eggs for?" She replies, "Every time I cheat on you, I put an egg in the box." He says, "That's alright, you've only cheated on me twice. What's the money for?" The wife replies, "Every time I get a dozen, I sell them!"
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Find number abc

If cbb30 - ab476 = b97a4 find number abc. Multiple solutions may exist.
Correct answers: 24
The first user who solved this task is Fazil Hashim.
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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: 19
The first user who solved this task is Nasrin 24 T.
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#brainteasers #mastermind
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Calculate the number 799

NUMBERMANIA: Calculate the number 799 using numbers [4, 3, 1, 3, 84, 110] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 15
The first user who solved this task is Nílton Corrêa de Sousa.
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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 (2, 3, 4, 5, 6, 7, 19, 20, 21, 59, 93) 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: 10
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math #magicsquare
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Find number abc

If 66aa4 - 439cb = aaa73 find number abc. Multiple solutions may exist.
Correct answers: 28
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#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: 23
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 9712

NUMBERMANIA: Calculate the number 9712 using numbers [3, 7, 4, 6, 16, 962] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 11
The first user who solved this task is Fazil Hashim.
CHECK ANSWER
#brainteasers #math #numbermania
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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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Joseph-Louis Proust

Born 26 Sep 1754; died 5 Jul 1826 at age 71.French chemist who proved (1808) that the relative quantities of any given pure chemical compound's constituent elements remain invariant, regardless of the compound's source, and thus provided crucial evidence in support of John Dalton's “law of definite proportions,” which holds that elements in any compound are present in fixed proportion to each other.
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