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MathThese are fun math riddles. All of these tricky riddles are based on real math concepts and can be solved with purely math and logic. These are the tasks listed 1 to 10. |
Calculate the number 2598
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NUMBERMANIA: Calculate the number 2598 using numbers [3, 3, 7, 5, 55, 643] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
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If c9abc - c4035 = 5a4a find number abc. Multiple solutions may exist. Calculate the number 687
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NUMBERMANIA: Calculate the number 687 using numbers [7, 6, 6, 8, 19, 125] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. 
Police investigation
A lady dies and the police finds out she was the madam at an illegal brothel They find her black book of workers and clients so they assign Bill, an older, widowed detective to talk to the women to find out more about the operation. They figure as an older man Bill won't be as enticed as younger detectives by the pretty young women.
A few weeks into the investigation Bill goes to his supervisor and says he needs to be relieved of the case because of a conflict of interest. The supervisor asks what he means.
"Well," Bill says, "All was going well and I was getting good info from the girls, but then the last woman in the book was Cindy, a sweet, beautiful and funny 59 year old. We met a couple of times and to make a long story short, we started dating and have now become an item."
The supervisor looks at Bill and says "I can't believe it Bill. Thirty eight years on the job, 2 years away from retirement, and you fell for the oldest trick in the book."
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/2026/04/16/magic-square-1776297945.png','/MAGIC-SQUARE-Calculate-A-B-C/8689'))
The aim is to place the some numbers from the list (18, 19, 20, 21, 22, 28, 29, 54, 56, 63, 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. 
Find number abc
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If a6c46 - b4aa2 = 8bc54 find number abc. Multiple solutions may exist. Calculate the number 1265
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NUMBERMANIA: Calculate the number 1265 using numbers [7, 1, 5, 6, 55, 947] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
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If 68cc8 + 4ab95 = ba85cc find number abc. Multiple solutions may exist. Calculate the number 6588
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NUMBERMANIA: Calculate the number 6588 using numbers [4, 4, 8, 8, 46, 504] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. 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/2026/04/09/magic-square-1775693126.png','/MAGIC-SQUARE-Calculate-A-B-C/8682'))
The aim is to place the some numbers from the list (2, 6, 8, 9, 17, 19, 20, 62, 64, 65) 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 4a18c - 1a3b3 = c98a9 find number abc. Multiple solutions may exist. 
