BRAIN TEASERS
Brain Teasers

Brain Teasers

puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, sport... These are the tasks listed 1 to 10.
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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: 3
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math #numbermania
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Find number abc

If cbb30 - ab476 = b97a4 find number abc. Multiple solutions may exist.
Correct answers: 8
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: 5
The first user who solved this task is Nasrin 24 T.
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#brainteasers #mastermind

I would tell you a j...

“I would tell you a joke about squirrels, but you would go nuts.”

Jokes of the day - Daily updated jokes. New jokes every day.
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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: 3
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: 5
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: 17
The first user who solved this task is Nasrin 24 T.
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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: 15
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: 5
The first user who solved this task is Fazil Hashim.
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#brainteasers #math #numbermania
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Find number abc

If 80c92 - aa21b = 2a479 find number abc. Multiple solutions may exist.
Correct answers: 15
The first user who solved this task is Nasrin 24 T.
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: 17
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
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NUMBERMANIA: Calculate the number 1644 using numbers [5, 5, 8, 8, 34, 281] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
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Vitamin C

In 1970, Nobel Prize winner, Linus Pauling declared this day that large doses of Vitamin C could ward off the common cold. He proposed that regular intake of vitamin C in amounts far higher than the officially sanctioned RDA (Recommended Daily Allowance) could help prevent and shorten the duration of the common cold. He concluded that the optimal daily intake of vitamin C for most people is 2.3 grams to 10 grams daily. Although the medical establishment immediately voiced their strong opposition to this idea, many ordinary people believed Dr. Pauling and began taking large amounts of vitamin C. He wrote a book on the subject Vitamin C and the Common Cold (1970) which became a best-seller..
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