# Daily Brain Teasers for Saturday, 13 July 2019

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

## 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

**Nasrin 24 T**.#brainteasers #mastermind

## Calculate the number 9682

NUMBERMANIA: Calculate the number 9682 using numbers [5, 9, 5, 6, 62, 995] 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**.#brainteasers #math #numbermania

## MAGIC SQUARE: Calculate A*B+C

The aim is to place the some numbers from the list (15, 16, 22, 24, 25, 31, 36, 37, 43, 61, 79) 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

**Nílton Corrêa de Sousa**.#brainteasers #math #magicsquare

### Getting a Cake

Little Johnny walked into the kitchen, saw his mother making a cake and announced, "I'll be playing in my room for the next two hours. I sure would like a piece of cake when you're finished."

Later, when his mother brought him a piece of cooled cake, Little Johnny exclaimed, "Golly, it worked!"

Puzzled, his mother asked, "What do you mean?"

Little Johnny replied, "Daddy said that in order to get a piece around here, you have to spend a couple of hours playing first!"

## Find number abc

If 84b24 - 4a804 = c4820 find number abc. Multiple solutions may exist.The first user who solved this task is

**Nasrin 24 T**.#brainteasers #math

## Simeon NorthBorn 13 Jul 1765; died 25 Aug 1852 at age 87. American inventor and manufacturer who, like Eli Whitney, incorporated interchangeable parts in manufacturing. After a start in farming, he began a business making scythes in 1795. He expanded to making pistols, first for private use, then under government contract in Mar 1799 for 400 pistols. Larger government orders followed. By 1813, at North's suggestion, a contract for 20,000 pistols included the provision that parts should be interchangeable. Subsequently, he developed machine tools to aid production. North is generally credited for building probably the earliest, though primitive, milling machine to replace filing operations by about 1816 or even earlier. For 53 years, he filled War Dept. contracts, including rifles (from 1823), and devised a 10-round repeating rifle (1825).« |

## 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

**Nasrin 24 T**.#brainteasers #mastermind

## Calculate the number 1846

NUMBERMANIA: Calculate the number 1846 using numbers [3, 7, 5, 1, 36, 910] 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**.#brainteasers #math #numbermania

## Find number abc

If 4cac9 - 4c0b5 = c54 find number abc. Multiple solutions may exist.The first user who solved this task is

**Nílton Corrêa de Sousa**.#brainteasers #math

## Calculate the number 3221

NUMBERMANIA: Calculate the number 3221 using numbers [8, 7, 4, 5, 71, 860] 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**.#brainteasers #math #numbermania

## MAGIC SQUARE: Calculate A-B*C

The aim is to place the some numbers from the list (4, 9, 10, 17, 23, 24, 31, 43, 44, 47, 51) 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**.#brainteasers #math #magicsquare

## Find number abc

If cc48c - ca3bb = 8a23 find number abc. Multiple solutions may exist.The first user who solved this task is

**Nasrin 24 T**.#brainteasers #math