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

## Calculate the number 9040

NUMBERMANIA: Calculate the number 9040 using numbers [1, 3, 9, 7, 53, 986] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.**2**

## Find number abc

If 88502 + bb0b8 = ca5580 find number abc. Multiple solutions may exist.**4**

## 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.**6**

### old man goes to the Dr ...

An 85-year-old man was requested by his doctor for a sperm count as part of his physical exam. The doctor gave the man a jar and said, "Take this jar home and bring back a semen sample tomorrow."

The next day the 85-year-old man reappeared at the doctor's office and gave him the jar, which was as clean and empty as on the previous day. The doctor asked, what happened and the man explained. "Well, doc, it's like this--first I tried with my right hand, but nothing. Then I tried with my left hand, but still nothing. Then I asked my wife for help. She tried with her right hand, then with her left, still nothing. She tried with her mouth, first with the teeth in, then with her teeth out, still nothing. We even called up Arleen, the lady next door and she tried too, first with both hands, then an armpit, and she even tried squeezin' it between her knees, but still nothing."

The doctor was shocked! "You asked your neighbor?" The old man replied, "

Yep, none of us could get the jar open."

## Calculate the number 1365

NUMBERMANIA: Calculate the number 1365 using numbers [7, 3, 5, 7, 55, 690] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.**1**

## MAGIC SQUARE: Calculate A+B-C

The aim is to place the some numbers from the list (11, 14, 18, 27, 30, 34, 36, 65, 68, 72) 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.**2**

## Find number abc

If a9a53 + 5acb1 = 103bca find number abc. Multiple solutions may exist.**1**

## 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.**3**

## Calculate the number 2907

NUMBERMANIA: Calculate the number 2907 using numbers [7, 3, 7, 4, 12, 979] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.**2**

## Find number abc

If 4bbaa - b8077 = ac045 find number abc. Multiple solutions may exist.**4**

## 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.**6**