## The Most Difficult Tasks (page 2)puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 11 to 20. |

## Calculate the number 1085

NUMBERMANIA: Calculate the number 1085 using numbers [6, 7, 1, 7, 20, 956] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.Correct answers:

**1**#brainteasers #math #numbermania

## Find number abc

If 9cab9 + 5cc3a = 15bcc9 find number abc. Multiple solutions may exist.Correct answers:

**1**#brainteasers #math

## Calculate the number 4405

NUMBERMANIA: Calculate the number 4405 using numbers [1, 4, 5, 3, 30, 864] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.Correct answers:

**1**#brainteasers #math #numbermania

## MAGIC SQUARE: Calculate A-B-C

The aim is to place the some numbers from the list (2, 5, 8, 21, 24, 27, 37, 40, 43, 98) 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:

**1**#brainteasers #math #magicsquare

## Find number abc

If 6cba7 - a8779 = bb6c8 find number abc. Multiple solutions may exist.Correct answers:

**1**#brainteasers #math

## MAGIC SQUARE: Calculate A*B-C

The aim is to place the some numbers from the list (21, 22, 24, 25, 26, 27, 39, 42, 44, 48, 51) 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:

**1**#brainteasers #math #magicsquare

## Calculate the number 1380

NUMBERMANIA: Calculate the number 1380 using numbers [5, 4, 1, 2, 35, 196] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.Correct answers:

**1**#brainteasers #math #numbermania

## Calculate the number 3490

NUMBERMANIA: Calculate the number 3490 using numbers [4, 4, 6, 7, 54, 693] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.Correct answers:

**1**#brainteasers #math #numbermania

## MAGIC SQUARE: Calculate A+B-C

The aim is to place the some numbers from the list (10, 12, 13, 20, 22, 23, 32, 33, 70, 72, 73) 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:

**1**#brainteasers #math #magicsquare

## Find number abc

If b08b1 - 1aca7 = c13bc find number abc. Multiple solutions may exist.Correct answers:

**1**#brainteasers #math