BRAIN TEASERS

# Daily Brain Teasers for Monday, 02 September 2019

 puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ...

## Calculate the number 886

NUMBERMANIA: Calculate the number 886 using numbers [9, 9, 5, 1, 62, 403] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math #numbermania

## Find number abc

If 7c4c7 - ac487 = a997b find number abc. Multiple solutions may exist.
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math

## 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.
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #mastermind

### The key

All the good knights were leaving for the Crusades. One knight told his best friend "My bride is without doubt one of the most beautiful women in the world. It would be a terrible waste if no man could have her. Therefore, as my best and most trusted friend, I am leaving you the key to her chastity belt to use should I not return from the Crusade in seven years."

The company of knights were only a mile or so out of town when they noticed a cloud of dust approaching. Thinking it might be an important message from the town the column halted. A horseman approached. It was the knight's best friend. He said "Hey, you gave me the wrong key!!"

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## Calculate the number 877

NUMBERMANIA: Calculate the number 877 using numbers [7, 1, 2, 1, 15, 866] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math #numbermania

### Franz Xaver von Zach

Died 2 Sep 1832 at age 78 (born 4 Jun 1754).(baron) German-Hungarian astronomer patronized by Duke Ernst of Saxe-Gotha-Altenburg. Director of observatory near Gotha (1787-1806). There he organized in 1798 the first congress of astronomers with Josef Lalande (1732-1807) as celebrated guest. In last years of the 18th century he formed a group of 24 astronomers chosen from throughout Europe to track down a "missing" planet between the orbits of Mars and Jupiter, where they instead discovered the asteroids. His greatest contribution was in the organizational area, for he maintained an enormous correspondence with all the astronomers of his time, and edited 28 volumes of Monatliche Korrespondenz zur Beforderung der Erd- und Himmelskunde (1800-13).

## MAGIC SQUARE: Calculate A-B+C

The aim is to place the some numbers from the list (4, 5, 7, 10, 11, 13, 23, 24, 26, 88) 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.
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math #magicsquare

## Find number abc

If aac67 - 2b20c = b26a9 find number abc. Multiple solutions may exist.
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math

## 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.
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #mastermind

## Calculate the number 5613

NUMBERMANIA: Calculate the number 5613 using numbers [6, 9, 4, 2, 31, 597] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #math #numbermania

## Find number abc

If 75849 + 856ac = b6b479 find number abc. Multiple solutions may exist.
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #math

## 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.
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
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