# Daily Brain Teasers for Tuesday, 14 May 2019

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

## 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**.#brainteasers #mastermind

## Calculate the number 1157

NUMBERMANIA: Calculate the number 1157 using numbers [8, 5, 8, 3, 77, 801] 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 7bb49 - 2249a = 5c85b find number abc. Multiple solutions may exist.The first user who solved this task is

**Nílton Corrêa De Sousa**.#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**.#brainteasers #mastermind

## Dish-washing machine patentIn 1850, the first U.S. patent for a dishwashing machine was issued to Joel Houghton of Ogden, NY, for an "Improvement in Machines for Washing Table Furniture" (No.7,365). Its design had a cylindrical wire basket to contain the dishes in a tub of boiling water which contained beaters turned by a handle to move the water against the tableware in the basket. The cylinder could also be rotated to expose its contents evenly to the action of the churning water. The first patent on a dishwasher that became commerically successful was issued on 28 Dec1886 to Josephine Cochrane. She began a company supplying her machines to restaurants and hotels, which continued after her death, and years later led to the "KichenAid" brand of home dishwashers.« |

## Calculate the number 539

NUMBERMANIA: Calculate the number 539 using numbers [2, 4, 5, 5, 90, 357] 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 (13, 14, 16, 17, 21, 22, 23, 24, 30, 66, 80) 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 6bca8 - 3695a = 2ac9a find number abc. Multiple solutions may exist.The first user who solved this task is

**Nílton Corrêa De Sousa**.#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**.#brainteasers #mastermind

## Calculate the number 1416

NUMBERMANIA: Calculate the number 1416 using numbers [9, 4, 5, 4, 54, 693] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.The first user who solved this task is

**Thinh Ddh**.#brainteasers #math #numbermania

## Find number abc

If 431ac - 1ba58 = ab8ba find number abc. Multiple solutions may exist.The first user who solved this task is

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