## Monthly Archive - April 2021brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1 to 10. |

## Calculate the number 567

NUMBERMANIA: Calculate the number 567 using numbers [2, 7, 9, 9, 40, 115] 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 (15, 16, 17, 18, 19, 25, 27, 45, 46, 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:

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

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

## Find number abc

If cb6c6 + bac99 = 458c5 find number abc. Multiple solutions may exist.Correct answers:

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

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

## 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:

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

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

## Calculate the number 338

NUMBERMANIA: Calculate the number 338 using numbers [9, 4, 9, 6, 29, 100] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.Correct answers:

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

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

## Find number abc

If 8a64a - 7cac0 = b5ca find number abc. Multiple solutions may exist.Correct answers:

**18**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:

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

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

## Calculate the number 6709

NUMBERMANIA: Calculate the number 6709 using numbers [2, 4, 5, 7, 61, 898] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.Correct answers:

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

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

## MAGIC SQUARE: Calculate A+B-C

The aim is to place the some numbers from the list (8, 11, 12, 19, 22, 23, 42, 45, 46, 54, 57) 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:

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

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

## Find number abc

If b94c4 + c66a4 = 46068 find number abc. Multiple solutions may exist.Correct answers:

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

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