## Brain Teasers (page 2)puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, sport... These are the tasks listed 11 to 20. |

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## MAGIC SQUARE: Calculate A-B-C

The aim is to place the some numbers from the list (11, 12, 20, 21, 22, 30, 32, 33, 41, 70, 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:

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

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

## Find number abc

If ab29c + a01cb = 12bcb7 find number abc. Multiple solutions may exist.Correct answers:

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

**Djordje Timotijevic**.#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:

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

**Djordje Timotijevic**.#brainteasers #mastermind

## Calculate the number 258

NUMBERMANIA: Calculate the number 258 using numbers [5, 5, 2, 2, 80, 560] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.Correct answers:

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

**Djordje Timotijevic**.#brainteasers #math #numbermania

## Find number abc

If c07c9 - bb5aa = 292b6 find number abc. Multiple solutions may exist.Correct answers:

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

**Djordje Timotijevic**.#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

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

## Calculate the number 555

NUMBERMANIA: Calculate the number 555 using numbers [9, 1, 5, 1, 73, 633] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.Correct answers:

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

**Djordje Timotijevic**.#brainteasers #math #numbermania

## MAGIC SQUARE: Calculate A-B*C

The aim is to place the some numbers from the list (1, 3, 4, 16, 18, 19, 31, 33, 34, 72, 74, 83, 94) 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

**Djordje Timotijevic**.#brainteasers #math #magicsquare

## Find number abc

If 91c33 - cab71 = 4a8b2 find number abc. Multiple solutions may exist.Correct answers:

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

**Djordje Timotijevic**.#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:

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

**Djordje Timotijevic**.#brainteasers #mastermind