## Monthly Archive - April 2022brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1 to 10. |

## 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:

**6**#brainteasers #mastermind

## Calculate the number 832

NUMBERMANIA: Calculate the number 832 using numbers [9, 1, 9, 1, 38, 793] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.Correct answers:

**5**#brainteasers #math #numbermania

## MAGIC SQUARE: Calculate A+B*C

The aim is to place the some numbers from the list (10, 14, 15, 18, 19, 23, 27, 31, 35, 92) 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:

**4**#brainteasers #math #magicsquare

### A biology teacher wished to de...

A biology teacher wished to demonstrate to his students the harmful effects of alcohol on living organisms. For his experiment, he showed them a beaker with pond water in which there was a thriving civilization of worms. When he added some alcohol into the beaker the worms doubled-up and died.

"Now," he said,” what do you learn from this?"

An eager student gave his answer.

"Well the answer is obvious," he said " if you drink alcohol, you'll never have worms."

"Now," he said,” what do you learn from this?"

An eager student gave his answer.

"Well the answer is obvious," he said " if you drink alcohol, you'll never have worms."

## Find number abc

If b24aa + 924bc = 1448bc find number abc. Multiple solutions may exist.Correct answers:

**10**#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**#brainteasers #mastermind

## Calculate the number 817

NUMBERMANIA: Calculate the number 817 using numbers [8, 3, 2, 9, 93, 551] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.Correct answers:

**2**#brainteasers #math #numbermania

## Find number abc

If 9a9c0 + 4983b = 14ab5b find number abc. Multiple solutions may exist.Correct answers:

**11**#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:

**8**#brainteasers #mastermind

## Calculate the number 3811

NUMBERMANIA: Calculate the number 3811 using numbers [9, 9, 1, 2, 40, 374] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.Correct answers:

**3**#brainteasers #math #numbermania

## MAGIC SQUARE: Calculate A+B-C

The aim is to place the some numbers from the list (3, 12, 15, 16, 22, 24, 25, 26, 39, 42, 43, 58) 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:

**3**#brainteasers #math #magicsquare