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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 1467
. Each of the numbers can be used only once.','/archive/2026/10/05/numbermania-1791158701.png','/calculate-the-number-1467/8856'))
NUMBERMANIA: Calculate the number 1467 using numbers [8, 6, 5, 5, 91, 959] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
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If 86cca - b920c = 6ca68 find number abc. Multiple solutions may exist. Calculate the number 1037
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NUMBERMANIA: Calculate the number 1037 using numbers [5, 4, 4, 3, 29, 106] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. 
Retaking exam
Four college students missed an important exam, choosing to party instead. They go together to their professor the next day, and said, "We're sorry we missed the exam. We had a flat tire on the way to class. Is there any way we could possibly take a re-test?"
"Sure," replied the professor. "Come on in tomorrow, and you can all take a retest. But remember, it's a pass or fail."
The four students arrived the next day to take the retest, and all of them sat down in their seats. Before handing them their exams, their professor told them, "I've got good news and bad news. The good part is, there's only one question on the test. The bad news is, if any of you fail, you all fail the test."
The students sat there, a bit worried from this professor's strange introduction to the exam. Then the professor handed out the four exams, and each student stared down at their papers, which contained just one simple question:
"Which tire was it?"
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/2026/10/01/magic-square-1790813126.png','/MAGIC-SQUARE-Calculate-A-B-C/8852'))
The aim is to place the some numbers from the list (7, 8, 9, 13, 14, 15, 20, 21, 22, 97) 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 2aaa6 + b0c40 = cca6b6 find number abc. Multiple solutions may exist. Calculate the number 2822
. Each of the numbers can be used only once.','/archive/2026/09/28/numbermania-1790553901.png','/calculate-the-number-2822/8849'))
NUMBERMANIA: Calculate the number 2822 using numbers [6, 6, 6, 4, 92, 385] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
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If a19ab + b1814 = ca746 find number abc. Multiple solutions may exist. Calculate the number 1632
. Each of the numbers can be used only once.','/archive/2026/09/25/numbermania-1790294701.png','/calculate-the-number-1632/8847'))
NUMBERMANIA: Calculate the number 1632 using numbers [4, 1, 7, 1, 76, 382] 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/2026/09/24/magic-square-1790208345.png','/MAGIC-SQUARE-Calculate-A-B-C/8846'))
The aim is to place the some numbers from the list (16, 17, 25, 30, 31, 39, 40, 53, 54, 62, 84) 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 b45a0 + cb7bb = 8ca8b find number abc. Multiple solutions may exist. 
