# Daily Brain Teasers for Sunday, 08 September 2019

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

## Find number abc

If 68b10 - c6a78 = 4c1ac find number abc. Multiple solutions may exist.**Nasrin 24 T**.

## 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.**Nasrin 24 T**.

## Calculate the number 905

NUMBERMANIA: Calculate the number 905 using numbers [7, 2, 4, 3, 46, 820] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.**Nílton Corrêa de Sousa**.

### Afraid to cough

John was a clerk in a small drugstore but he was not much of a salesman. He could never find the item the customer wanted.

Bob, the owner, had about enough and warned John that the next sale he missed would be his last.

Just then a man came in coughing and he ask John for their best cough syrup.

Try as he might John could not find the cough syrup. Remembering Bob's warning he sold the man a box of Ex-Lax and told him to take it all at once.

The customer did as John said and then walked outside and leaned against a lamp post.

Bob had seen the whole thing and came over to ask John what had transpired.

"He wanted something for his cough but I couldn't find the cough syrup. I substituted Ex-Lax and told him to take it all at once" John explained.

"Ex-Lax won't cure a cough!" Bob shouted angrily.

"Sure it will" John said, pointing at the man leaning on the lamp post.

"Just look at him. He's afraid to cough!"

## MAGIC SQUARE: Calculate A-B*C

The aim is to place the some numbers from the list (7, 8, 14, 24, 25, 31, 57, 58, 64) 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.**Nílton Corrêa de Sousa**.

## Smoking and heart diseaseIn 1961, statistical evidence linking heavy smoking with heart disease was reported in the Journal of the American Medical Association. Drs. Daniel J Nathan and Dr. David M. Spain had studed 3,000 men. They found that for smokers of over 40 cigarettes daily and aged under 51 years, their chance of having coronary heart disease almost doubled. Further, among those studied that had coronary heart disease, 57% of heavy smokers suffered heart attacks, as compared to only 31% of light smokers. The doctors said it remained an "open question" whether the statistics were proof that heavy smoking was a cause of hardening of coronary arteries. Only a four-sentence article on page 3 appeared in the New York Times.«* |

## Find number abc

If b2b71 - 12b5a = a001c find number abc. Multiple solutions may exist.**Nasrin 24 T**.

## 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.**Nasrin 24 T**.

## 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.**Nílton Corrêa de Sousa**.

## Find number abc

If 7c4c7 - ac487 = a997b find number abc. Multiple solutions may exist.**Nasrin 24 T**.

## 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.**Nílton Corrêa de Sousa**.

## 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.**Nílton Corrêa de Sousa**.