## Brain Teaserspuzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, sport... These are the tasks listed 1 to 10. |

Register with your
Check your ranking on list.

## Find number abc

If 6b86c - 14cb0 = aaa7c find number abc. Multiple solutions may exist.Correct answers:

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

**Nílton Corrêa De Sousa**.#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:

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

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

## Calculate the number 897

NUMBERMANIA: Calculate the number 897 using numbers [1, 2, 4, 5, 53, 209] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.Correct answers:

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

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

### A little old lady is walking d...

A little old lady is walking down the street dragging two large plastic garbage bags behind her. One of the bags rips, and every once in a while a $20 bill falls out onto the sidewalk.

Noticing this, a policeman stops her, and says, "Ma'am, There are $20 bills falling out of your bag."

"'Oh, really? Darn!" says the little old lady. "I'd better go back, and see if I can find them. Thanks for telling me.."

"Well, now, not so fast," says the cop. "How did you get all that money?' You didn't steal it, did you?"

"Oh, no", says the little old lady. "You see, my back yard is right next to the football stadium parking lot. On game days, a lot of fans come and pee through the fence into my flower garden. So, I stand behind the fence with my hedge clippers. Each time some guy sticks his thing through the fence, I say, '$20 or off it comes."

"Well, that seems only fair." laughs the cop. "OK? Good Luck! Oh, by the way, what's in the other bag?''

"Well, you know", says the little old lady, "not everybody pays."

Noticing this, a policeman stops her, and says, "Ma'am, There are $20 bills falling out of your bag."

"'Oh, really? Darn!" says the little old lady. "I'd better go back, and see if I can find them. Thanks for telling me.."

"Well, now, not so fast," says the cop. "How did you get all that money?' You didn't steal it, did you?"

"Oh, no", says the little old lady. "You see, my back yard is right next to the football stadium parking lot. On game days, a lot of fans come and pee through the fence into my flower garden. So, I stand behind the fence with my hedge clippers. Each time some guy sticks his thing through the fence, I say, '$20 or off it comes."

"Well, that seems only fair." laughs the cop. "OK? Good Luck! Oh, by the way, what's in the other bag?''

"Well, you know", says the little old lady, "not everybody pays."

## Find number abc

If 8b76a - ab021 = c07bb 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:

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

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

## Calculate the number 2254

NUMBERMANIA: Calculate the number 2254 using numbers [1, 5, 1, 7, 85, 470] 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 (12, 14, 16, 34, 36, 38, 72, 74, 76, 82) 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:

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

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

## Find number abc

If 2188c + 7cbac = b87b2 find number abc. Multiple solutions may exist.Correct answers:

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

**Nílton Corrêa De Sousa**.#brainteasers #math

## Calculate the number 1079

NUMBERMANIA: Calculate the number 1079 using numbers [2, 1, 2, 6, 87, 986] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.Correct answers:

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

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

## Find number abc

If a70a0 - 11aa6 = 7b1c4 find number abc. Multiple solutions may exist.Correct answers:

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

**Nílton Corrêa De Sousa**.#brainteasers #math