## Monthly Archive - December 2019 (page 3)brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 21 to 30. |

## Find number abc

If 81b77 - 6cba6 = 160c1 find number abc. Multiple solutions may exist.Correct answers:

**38**The first user who solved this task is

**Nasrin 24 T**.#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.Correct answers:

**26**The first user who solved this task is

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

## Calculate the number 678

NUMBERMANIA: Calculate the number 678 using numbers [7, 1, 1, 2, 82, 603] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.Correct answers:

**20**The first user who solved this task is

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

### The Man Who Orders Three Beers

An Irishman by the name of Paul McLean moves into a tiny hamlet in County Kerry, walks into the pub and promptly orders three beers. The bartender raises his eyebrows, but serves the man three beers, which he drinks quietly at a table, alone.

An hour later, the man has finished the three beers and orders three more. This happens yet again. The next evening the man again orders and drinks three beers at a time, several times. Soon the entire town is whispering about the Man Who Orders Three Beers.

Finally, a week later, the bartender broaches the subject on behalf of the town. "I don't mean to pry, but folks around here are wondering why you always order three beers."

"'Tis odd, isn't it?" the man replies. "You see, I have two brothers, and one went to America, and the other to Australia. We promised each other that we would always order an extra two beers whenever we drank as a way of keeping up the family bond."

The bartender and the whole town was pleased with this answer, and soon the Man Who Orders Three Beers became a local celebrity and source of pride to the hamlet, even to the extent that out-of-towners would come to watch him drink.

Then, one day, the man comes in and orders only two beers. The bartender pours them with a heavy heart. This continues for the rest of the evening -- he orders only two beers. Word flies around town. Prayers are offered for the soul of one of the brothers.

The next day, the bartender says to the man, "Folks around here, me first of all, want to offer condolences to you for the death of your brother. You know -- the two beers and all..."

The man ponders this for a moment, then replies, "You'll be happy to hear that my two brothers are alive and well. It's just that I, meself, have decided to give up drinking for Lent."

An hour later, the man has finished the three beers and orders three more. This happens yet again. The next evening the man again orders and drinks three beers at a time, several times. Soon the entire town is whispering about the Man Who Orders Three Beers.

Finally, a week later, the bartender broaches the subject on behalf of the town. "I don't mean to pry, but folks around here are wondering why you always order three beers."

"'Tis odd, isn't it?" the man replies. "You see, I have two brothers, and one went to America, and the other to Australia. We promised each other that we would always order an extra two beers whenever we drank as a way of keeping up the family bond."

The bartender and the whole town was pleased with this answer, and soon the Man Who Orders Three Beers became a local celebrity and source of pride to the hamlet, even to the extent that out-of-towners would come to watch him drink.

Then, one day, the man comes in and orders only two beers. The bartender pours them with a heavy heart. This continues for the rest of the evening -- he orders only two beers. Word flies around town. Prayers are offered for the soul of one of the brothers.

The next day, the bartender says to the man, "Folks around here, me first of all, want to offer condolences to you for the death of your brother. You know -- the two beers and all..."

The man ponders this for a moment, then replies, "You'll be happy to hear that my two brothers are alive and well. It's just that I, meself, have decided to give up drinking for Lent."

## Find number abc

If caabc - 4caba = 32aac find number abc. Multiple solutions may exist.Correct answers:

**55**The first user who solved this task is

**Nasrin 24 T**.#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.Correct answers:

**18**The first user who solved this task is

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

## Calculate the number 1651

NUMBERMANIA: Calculate the number 1651 using numbers [7, 2, 6, 1, 73, 614] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.Correct answers:

**10**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 (5, 16, 17, 20, 24, 25, 28, 34, 39, 40, 43, 55) 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.Correct answers:

**11**The first user who solved this task is

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

## Find number abc

If 6b59c - 169ac = c6670 find number abc. Multiple solutions may exist.Correct answers:

**24**The first user who solved this task is

**Nasrin 24 T**.#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.Correct answers:

**22**The first user who solved this task is

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

## Calculate the number 613

NUMBERMANIA: Calculate the number 613 using numbers [2, 8, 9, 4, 39, 538] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.Correct answers:

**17**The first user who solved this task is

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