## Math (page 2)These are fun math riddles. All of these tricky riddles are based on real math concepts and can be solved with purely math and logic. These are the tasks listed 11 to 20. |

## Calculate the number 1416

NUMBERMANIA: Calculate the number 1416 using numbers [9, 4, 5, 4, 54, 693] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.**11**

**Thinh Ddh**.

## Find number abc

If 431ac - 1ba58 = ab8ba find number abc. Multiple solutions may exist.**20**

**Nílton Corrêa De Sousa**.

## Calculate the number 310

NUMBERMANIA: Calculate the number 310 using numbers [4, 4, 1, 1, 28, 278] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.**14**

**Nílton Corrêa De Sousa**.

### The big squeeze

The local bar was so sure that its bartender was the strongest man around that they offered a standing $1000 bet. The bartender would squeeze a lemon until all the juice ran into a glass, and hand the lemon to a patron. Anyone who could squeeze one more drop of juice out would win the money. Many people had tried over time (weight-lifters, longshoremen, etc.) but nobody could do it.

One day this scrawny little man came into the bar, wearing thick glasses and a polyester suit, and said in a tiny squeaky voice " I'd like to try the bet" After the laughter had died down, the bartender said OK, grabbed a lemon, and squeezed away. Then he handed the wrinkled remains of the rind to the little man. But the crowd's laughter turned to total silence as the man clenched his fist around the lemon and six drops fell into the glass.

As the crowd cheered, the bartender paid the $1000, and asked the little man "what do you do for a living? Are you a lumberjack, a weight-lifter, or what?"

The man replied "I work for the IRS."

## MAGIC SQUARE: Calculate A-B-C

The aim is to place the some numbers from the list (14, 16, 21, 23, 24, 26, 31, 47, 71, 73, 81) 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.**8**

**Nasrin 24 T**.

## Find number abc

If a9aac + 8cc86 = 1b98b6 find number abc. Multiple solutions may exist.**17**

**Nílton Corrêa De Sousa**.

## Calculate the number 2333

NUMBERMANIA: Calculate the number 2333 using numbers [4, 1, 7, 5, 97, 371] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.**9**

**Nílton Corrêa De Sousa**.

## Find number abc

If a5a93 - b5acb = c00a9 find number abc. Multiple solutions may exist.**12**

**Nasrin 24 T**.

## Calculate the number 1520

NUMBERMANIA: Calculate the number 1520 using numbers [1, 7, 8, 4, 96, 763] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.**13**

**Nílton Corrêa De Sousa**.

## MAGIC SQUARE: Calculate A-B+C

The aim is to place the some numbers from the list (9, 13, 15, 16, 18, 20, 21, 33, 35, 36, 75, 90) 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.**8**

**Nasrin 24 T**.

## Find number abc

If 2c4a0 + 87bca = bb3cba find number abc. Multiple solutions may exist.**28**

**Nasrin 24 T**.