# Daily Brain Teasers for Friday, 14 December 2018

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

## Calculate the number 1783

NUMBERMANIA: Calculate the number 1783 using numbers [7, 6, 8, 3, 26, 270] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.The first user who solved this task is

**Djordje Timotijevic**.#brainteasers #math #numbermania

## MAGIC SQUARE: Calculate A*B+C

The aim is to place the some numbers from the list (15, 22, 23, 25, 29, 32, 33, 37, 38, 39, 60, 61, 67) 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

**Djordje Timotijevic**.#brainteasers #math #magicsquare

## Find number abc

If 21a4c + c10c2 = b2a7b find number abc. Multiple solutions may exist.The first user who solved this task is

**Djordje Timotijevic**.#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**.#brainteasers #mastermind

## John J. BittnerDied 14 Dec 1961 at age 57 (born 25 Feb 1904).John J(oseph) Bittner was an American geneticist who isolated a "Bittner milk factor" (1949) from the milk of certain mice, which strongly suggested that at least some viruses can cause cancer. Using carefully bred strains of mice, he compared the role of the mother's genetic disposition to be either prone to cancer or resistant. By having the mice of one disposition act as foster mothers and nurse the babies of the other disposition, he showed that cancer-prone young could grow to be cancer resistant. The opposite was also true: babies originally cancer-resistant became cancer prone. He published this observation (1936), and went on to isolate particles of a virus-like size from the milk of cancer-prone mice that were not present in the milk of cancer-resistant mice. |

## Calculate the number 914

NUMBERMANIA: Calculate the number 914 using numbers [1, 5, 9, 5, 82, 544] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.The first user who solved this task is

**Djordje Timotijevic**.#brainteasers #math #numbermania

## Find number abc

If 8c4aa - ab553 = 2b9c3 find number abc. Multiple solutions may exist.The first user who solved this task is

**Djordje Timotijevic**.#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

**Djordje Timotijevic**.#brainteasers #mastermind

## Calculate the number 790

NUMBERMANIA: Calculate the number 790 using numbers [9, 2, 7, 7, 16, 718] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.The first user who solved this task is

**Djordje Timotijevic**.#brainteasers #math #numbermania

## MAGIC SQUARE: Calculate A-B-C

The aim is to place the some numbers from the list (11, 12, 20, 21, 22, 30, 32, 33, 41, 70, 91) 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

## Find number abc

If ab29c + a01cb = 12bcb7 find number abc. Multiple solutions may exist.The first user who solved this task is

**Djordje Timotijevic**.#brainteasers #math