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

## 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:

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

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

## Calculate the number 2040

NUMBERMANIA: Calculate the number 2040 using numbers [1, 9, 2, 4, 55, 234] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.Correct answers:

**8**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 (10, 12, 13, 24, 31, 33, 34, 67, 69, 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.Correct answers:

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

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

### There were two buddies, one wi...

There were two buddies, one with a Doberman Pinscher and the other with a Chihuahua. The guy with the Doberman Pinscher says to his friend, "Let's go over to that restaurant and get something to eat."

The guy with the Chihuahua says, "We can't go in there. We've got dogs with us."

The buddy with the Doberman Pinscher says, "Just follow my lead."

They walk over to the restaurant, the guy with the Doberman Pinscher puts on a pair of dark glasses and he starts to walk in. The bouncer at the door says, "Sorry, mac, no pets allowed."

The man with the Doberman Pinscher says, "You don't understand. This is my seeing-eye-dog."

The bouncer says, "A Doberman Pinscher?"

He answers, "Yes, they're using them now; they're very good and protect me from robbers, too."

The man at the door says, "Come on in."

The buddy with the Chihuahua figures, "What the heck," so he puts on a pair of dark glasses and starts to walk in.

Once again the bouncer says, "Sorry, pal, no pets allowed."

The guy with the Chihuahua says, "You don't understand. This is my seeing-eye dog."

The bouncer at the door says, "A Chihuahua?"

The man with the Chihuahua says, "A Chihuahua?????? They gave me a Chihuahua?!"

The guy with the Chihuahua says, "We can't go in there. We've got dogs with us."

The buddy with the Doberman Pinscher says, "Just follow my lead."

They walk over to the restaurant, the guy with the Doberman Pinscher puts on a pair of dark glasses and he starts to walk in. The bouncer at the door says, "Sorry, mac, no pets allowed."

The man with the Doberman Pinscher says, "You don't understand. This is my seeing-eye-dog."

The bouncer says, "A Doberman Pinscher?"

He answers, "Yes, they're using them now; they're very good and protect me from robbers, too."

The man at the door says, "Come on in."

The buddy with the Chihuahua figures, "What the heck," so he puts on a pair of dark glasses and starts to walk in.

Once again the bouncer says, "Sorry, pal, no pets allowed."

The guy with the Chihuahua says, "You don't understand. This is my seeing-eye dog."

The bouncer at the door says, "A Chihuahua?"

The man with the Chihuahua says, "A Chihuahua?????? They gave me a Chihuahua?!"

## Find number abc

If 3b2a8 + c2524 = 1b2c92 find number abc. Multiple solutions may exist.Correct answers:

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

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

## What a winning 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:

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

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

## Calculate the number 8692

NUMBERMANIA: Calculate the number 8692 using numbers [8, 1, 9, 7, 81, 478] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.Correct answers:

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

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

## Find number abc

If aa09c + c05b8 = 5a6b0 find number abc. Multiple solutions may exist.Correct answers:

**21**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:

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

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

## Calculate the number 3809

NUMBERMANIA: Calculate the number 3809 using numbers [2, 4, 8, 7, 69, 916] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.Correct answers:

**8**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 (5, 21, 22, 24, 25, 29, 30, 31, 34, 39, 91) 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:

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

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