BRAIN TEASERS
Monthly Archive - December 2019 (page 2)

Monthly Archive - December 2019 (page 2)

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 11 to 20.
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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: 16
The first user who solved this task is Nasrin 24 T.
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#brainteasers #mastermind
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Calculate the number 8661

NUMBERMANIA: Calculate the number 8661 using numbers [2, 5, 8, 8, 22, 849] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 11
The first user who solved this task is NĂ­lton CorrĂȘa 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 (3, 13, 15, 20, 21, 22, 23, 28, 31, 33, 39, 42) 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: 8
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #magicsquare

Friday vs Monday

Friday vs Monday
Jokes of the day - Daily updated jokes. New jokes every day.
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Find number abc

If 69cba + 2babc = 965cc find number abc. Multiple solutions may exist.
Correct answers: 25
The first user who solved this task is Nasrin 24 T.
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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: 25
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 6047

NUMBERMANIA: Calculate the number 6047 using numbers [2, 7, 2, 6, 34, 723] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 12
The first user who solved this task is undefined.
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#brainteasers #math #numbermania
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Find number abc

If aaba6 - 1bcc2 = b0b5a find number abc. Multiple solutions may exist.
Correct answers: 18
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math
[link]

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: 30
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 1033

NUMBERMANIA: Calculate the number 1033 using numbers [2, 8, 5, 9, 71, 992] 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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MAGIC SQUARE: Calculate A*B*C

The aim is to place the some numbers from the list (4, 6, 7, 8, 10, 11, 28, 69, 71, 72, 75) 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: 8
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #magicsquare
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Heinrich Olbers

Died 2 Mar 1840 at age 81 (born 11 Oct 1758).Heinrich Wilhelm Matthaus Olbers was a German physician and astronomer who, while practising medicine at Bremen, calculated the orbit of the comet of 1779, discovered the minor planets (asteroids) Pallas (1802) and Vesta (1807), and discovered five comets (all but one already observed at Paris). Olbers invented a method for calculating the velocity of falling stars. He is also known for Olber's paradox which asks“why is the night sky dark if there are so many bright stars all around to light it?”Image: Monument in Bremen, Germany
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