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

## Find number abc

If c8850 + 9488b = bca7ab find number abc. Multiple solutions may exist.Correct answers:

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

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

## Which is a winning combination of digits?

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:

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

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

## Calculate the number 4436

NUMBERMANIA: Calculate the number 4436 using numbers [1, 9, 8, 2, 79, 502] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.Correct answers:

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

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

### What happened?

"What happened?" asked the hospital visitor to the heavily bandaged man sitting up in bed.

"Well, I went down to Alton towers and decided to take a ride on the Loch Ness Monster. As we came up to the top of the highest loop, I noticed a little sign by the side of the track. I tried to read it, but it was very small and I couldn't make it out. I was so curious that I decided to go round again, but we went by so quickly that I couldn't see what the sign said.

"By now, I was determined to read that sign, so I went round a third time. As we reached the top, I stood up in the car to get a better view."

"And did you manage to see what the sign said this time?" asked the visitor.

"Yes," he said sheepishly, "Remain seated at all times!"

"Well, I went down to Alton towers and decided to take a ride on the Loch Ness Monster. As we came up to the top of the highest loop, I noticed a little sign by the side of the track. I tried to read it, but it was very small and I couldn't make it out. I was so curious that I decided to go round again, but we went by so quickly that I couldn't see what the sign said.

"By now, I was determined to read that sign, so I went round a third time. As we reached the top, I stood up in the car to get a better view."

"And did you manage to see what the sign said this time?" asked the visitor.

"Yes," he said sheepishly, "Remain seated at all times!"

## MAGIC SQUARE: Calculate A*B-C

The aim is to place the some numbers from the list (4, 5, 12, 14, 21, 22, 29, 68, 69, 76) 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:

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

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

## Find number abc

If b9a8c - cb43a = 5ab5a find number abc. Multiple solutions may exist.Correct answers:

**23**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:

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

**Nílton Corrêa de Sousa**.#brainteasers #mastermind

## Calculate the number 1566

NUMBERMANIA: Calculate the number 1566 using numbers [9, 6, 2, 1, 46, 229] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.Correct answers:

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

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

## Find number abc

If 1bc5b + aa5bc = b7796 find number abc. Multiple solutions may exist.Correct answers:

**23**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:

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

**Nílton Corrêa de Sousa**.#brainteasers #mastermind

## Calculate the number 672

NUMBERMANIA: Calculate the number 672 using numbers [8, 5, 8, 3, 64, 199] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.Correct answers:

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

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