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

## MAGIC SQUARE: Calculate A*B*C

The aim is to place the some numbers from the list (2, 3, 5, 6, 8, 11, 14, 15, 17, 20, 25, 76) 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:

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

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

## Find number abc

If 6abc3 + a93c9 = caab2 find number abc. Multiple solutions may exist.Correct answers:

**14**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:

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

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

## Calculate the number 714

NUMBERMANIA: Calculate the number 714 using numbers [1, 1, 6, 2, 24, 660] 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

## Find number abc

If aab9a - 2b40c = 393cc find number abc. Multiple solutions may exist.Correct answers:

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

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

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

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

## Calculate the number 5020

NUMBERMANIA: Calculate the number 5020 using numbers [6, 8, 6, 6, 49, 338] 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

## MAGIC SQUARE: Calculate A+B-C

The aim is to place the some numbers from the list (4, 8, 9, 10, 11, 12, 13, 59, 60, 61, 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.Correct answers:

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

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

## Find number abc

If b0ba2 - c6aa6 = 1c696 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:

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

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