## Monthly Archive - December 2019brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1 to 10. |

## 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.Correct answers:

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

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

## Calculate the number 5238

NUMBERMANIA: Calculate the number 5238 using numbers [8, 6, 8, 4, 86, 289] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.Correct answers:

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

**Fazil Hashim**.#brainteasers #math #numbermania

## Find number abc

If 7bbca - cbc2a = 4a51a find number abc. Multiple solutions may exist.Correct answers:

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

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

### Ever go fishing?

A man was speeding down the highway, feeling secure in a gaggle of cars all traveling at the same speed. However, as they passed a speed trap, he got nailed with an infrared speed detector and was pulled over.

The officer handed him the citation, received his signature and was about to walk away when the man asked, "Officer, I know I was speeding, but I don't think it's fair - there were plenty of other cars around me who were going just as fast, so why did *I* get the ticket?"

"Ever go fishing?" the policeman suddenly asked the man.

"Ummm, yeah..." the startled man replied.

The officer grinned and added, "Ever catch *all* the fish?"

## 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 6890

NUMBERMANIA: Calculate the number 6890 using numbers [7, 6, 7, 6, 76, 455] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.Correct answers:

**9**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 (1, 4, 6, 24, 27, 29, 31, 33, 34, 36, 72) 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:

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

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

## Find number abc

If baa40 + 95bcb = bbc86b find number abc. Multiple solutions may exist.Correct answers:

**19**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:

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

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

## Calculate the number 4972

NUMBERMANIA: Calculate the number 4972 using numbers [7, 8, 2, 2, 79, 696] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.Correct answers:

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

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

## Find number abc

If 8a2c0 - 4aabc = c94aa find number abc. Multiple solutions may exist.Correct answers:

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

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