## The Most Difficult Tasks (page 4)puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 31 to 40. |

## Calculate the number 8508

NUMBERMANIA: Calculate the number 8508 using numbers [8, 5, 7, 5, 13, 650] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.**0**

## MAGIC SQUARE: Calculate A-B+C

The aim is to place the some numbers from the list (13, 14, 15, 24, 25, 26, 54, 58, 59, 60) 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.**0**

## Find number abc

If cbac2 + ba090 = 1a1ca2 find number abc. Multiple solutions may exist.**0**

### The New Flight Atten

A pilot got on the loudspeaker shortly after takeoff and said to the passengers, "Folks, welcome aboard flight seven eighty-nine to Cleveland. We'll be flying at thirty-five-thousand feet, and expect to land in an hour and a half. Just sit back, relax, and enjoy the flight."

Forgetting to turn off the microphone, he turned to his co-pilot, yawned, and said, "Why don't you take over for a while? I'm going to take me a big healthy shit, and then I'm gonna shag the brains outta that new blonde flight attendant."

His announcement went over the whole plane. The pretty blonde flight attendant heard this and exclaimed, "Oh my God!" and started running towards the cockpit.

An old lady sitting in an aisle seat stopped her and said, "Relax honey, he's gotta take a shit first."

## Calculate the number 873

NUMBERMANIA: Calculate the number 873 using numbers [5, 8, 8, 7, 15, 823] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.**0**

## Calculate the number 2508

NUMBERMANIA: Calculate the number 2508 using numbers [3, 8, 4, 9, 87, 328] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.**0**

## MAGIC SQUARE: Calculate A*B*C

The aim is to place the some numbers from the list (2, 7, 8, 10, 13, 28, 29, 31, 39, 40, 42) 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.**0**

## Calculate the number 2768

NUMBERMANIA: Calculate the number 2768 using numbers [3, 8, 1, 3, 28, 673] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.**0**

## Find number abc

If 9ca66 - 39b6b = a13c4 find number abc. Multiple solutions may exist.**0**

## Calculate the number 3587

NUMBERMANIA: Calculate the number 3587 using numbers [7, 4, 4, 9, 83, 718] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.**0**

## MAGIC SQUARE: Calculate A*B+C

The aim is to place the some numbers from the list (7, 8, 11, 20, 21, 24, 49, 59, 66, 67, 70) 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.**0**