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Monthly Archive - November 2025 (page 3)brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 21 to 30. |
Find number abc
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If bbcaa + 3c32c = 9747b find number abc. Multiple solutions may exist. Which is a winning combination of digits?
. 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.','/archive/2025/11/08/mastermind-1762560301.png','/Which-is-a-winning-combination-of-digits/8533'))
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. Calculate the number 7406
. Each of the numbers can be used only once.','/archive/2025/11/07/numbermania-1762473901.png','/calculate-the-number-7406/8532'))
NUMBERMANIA: Calculate the number 7406 using numbers [2, 8, 4, 4, 82, 845] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. 
World Teachers' Day Jokes
On 5th October we appreciate our educators with World Teachers' Day! Here are some light-hearted teacher jokes:
Why did the math book look sad?
Because it had too many problems.
Teacher: Give me a sentence beginning with ‘I’.
Student: I is the…
Teacher: Remember you must say ‘I am’ not ‘I is’.
Student: All right. I am the ninth letter of the alphabet.
Q: Who’s the king of the classroom?
A: The ruler.
Q: What’s the longest word in the dictionary?
A: Smiles. Because there’s a mile between the first letter and the last.
Teacher: Why are you late for school?
Student: Because of a sign down the road.
Teacher: What does the sign have to do with you being late?
Student: The sign said, “School Ahead, Go Slow!”
Q: Why did the teacher wear sunglasses on the first day of school?
A: She heard her classes were super bright!
Teacher: If I had 8 oranges in one hand and 10 apples in the other hand, what would I have?
Student: Big hands!
Teacher: We will only have a half-day of school this morning…
Students: Yay!!!!
Teacher: Then we will have the other half this afternoon.
Teacher: What is the most common phrase used in school?
Student: I don’t know!
Teacher: Correct!
Teacher: What are two pronouns?
Student: Who? Me?
MAGIC SQUARE: Calculate A+B*C
 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.','/archive/2025/11/06/magic-square-1762387527.png','/MAGIC-SQUARE-Calculate-A-B-C/8531'))
The aim is to place the some numbers from the list (12, 13, 14, 18, 19, 22, 27, 57, 58, 66) 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. Find number abc
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If abbc4 - abc70 = 2b4 find number abc. Multiple solutions may exist. Which is a winning combination of digits?
. 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.','/archive/2025/11/04/mastermind-1762214701.png','/Which-is-a-winning-combination-of-digits/8529'))
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. Calculate the number 618
. Each of the numbers can be used only once.','/archive/2025/11/03/numbermania-1762128301.png','/calculate-the-number-618/8528'))
NUMBERMANIA: Calculate the number 618 using numbers [1, 9, 2, 3, 11, 621] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
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If bc7bc - 17740 = 4a01c find number abc. Multiple solutions may exist. Which is a winning combination of digits?
. 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.','/archive/2025/11/01/mastermind-1761955501.png','/Which-is-a-winning-combination-of-digits/8526'))
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. 
