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

## Calculate the number 567

NUMBERMANIA: Calculate the number 567 using numbers [2, 7, 9, 9, 40, 115] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.**10**

**Nílton Corrêa de Sousa**.

## MAGIC SQUARE: Calculate A+B*C

The aim is to place the some numbers from the list (15, 16, 17, 18, 19, 25, 27, 45, 46, 55) 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.**9**

**Nasrin 24 T**.

## Find number abc

If cb6c6 + bac99 = 458c5 find number abc. Multiple solutions may exist.**20**

**Nasrin 24 T**.

### 14 Cat jokes

What's a cat's favorite book?

The Great Cats-by.

What's a cat's favorite day of the week?

Cat-urday.

Why did the cats ask for a piano?

They wanted to make mew-sic.

What’s a cat’s favorite cereal?

Mice crispies.

What’s a cat’s favorite TV show?

Claw and Order.

If your cat was an artist, what would they paint?

Paw-traits.

What's a cat’s favorite color?

Purr-ple.

If cats taught school, what would they be called?

Purr-fessors.

What's a cat's favorite food?

Paw-sta.

What do you call a cat who loves to bowl?

An alley cat.

How did the lazy kittens work on their school project?

They put in the bare mew-nimum.

What's every kitten’s favorite movie?

The Little Purr-maid.

What's a cat’s favorite dessert?

Chocolate mouse.

Why don’t cats like online shopping?

They prefer cat-alogues.

## 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.**19**

**Nasrin 24 T**.

## Calculate the number 338

NUMBERMANIA: Calculate the number 338 using numbers [9, 4, 9, 6, 29, 100] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.**11**

**Nílton Corrêa de Sousa**.

## Find number abc

If 8a64a - 7cac0 = b5ca find number abc. Multiple solutions may exist.**18**

**Nasrin 24 T**.

## 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.**22**

**Nasrin 24 T**.

## Calculate the number 6709

NUMBERMANIA: Calculate the number 6709 using numbers [2, 4, 5, 7, 61, 898] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.**10**

**Nasrin 24 T**.

## MAGIC SQUARE: Calculate A+B-C

The aim is to place the some numbers from the list (8, 11, 12, 19, 22, 23, 42, 45, 46, 54, 57) 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.**14**

**Nasrin 24 T**.

## Find number abc

If b94c4 + c66a4 = 46068 find number abc. Multiple solutions may exist.**23**

**Nasrin 24 T**.