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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 9399
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NUMBERMANIA: Calculate the number 9399 using numbers [2, 8, 7, 4, 99, 901] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
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If 89ab9 - bc00c = 6babb find number abc. Multiple solutions may exist. Calculate the number 8216
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NUMBERMANIA: Calculate the number 8216 using numbers [7, 6, 1, 9, 68, 585] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. 
Public Service Joke
June 23rd is United Nations Public Service Day! Find joke about it!
A man goes to the post office to apply for a job.
The interviewer asks him, "Are you allergic to anything?"
He replies, "Yes, caffeine."
"Have you ever served in the military?"
"Yes," he says. "I was in Iraq for two years."
The interviewer says, "That will give you 5 extra points towards employment."
Then he asks, "Are you disabled in any way?"
The guy says, "Yes. A bomb exploded near me and I lost both of my testicles."
The interviewer grimaces and then says, "Disabled in your country's service!
Well, that qualifies for extra bonus points. Okay. Looking at the regulations, you've got enough points for me to hire you right now.
Our normal hours are from 8:00 am to 4:00 pm.
You can start tomorrow at 10:00 am, and plan on starting at 10:00 am every day."
The guy is puzzled and asks, "If the work hours are from 8:00 am to 4:00 PM, why don't you want me here until 10:00 am?"
"This is a government job," the interviewer says.
"For the first two hours, we just stand around drinking coffee and scratching our...
you know what.
No point in you coming in for that.
#unitednationspublicserviceday #publicserviceday
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/2026/01/08/magic-square-1767830745.png','/MAGIC-SQUARE-Calculate-A-B-C/8592'))
The aim is to place the some numbers from the list (6, 15, 17, 18, 19, 21, 22, 33, 35, 36, 92) 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 795ac - 7cb37 = babb find number abc. Multiple solutions may exist. Calculate the number 3430
. Each of the numbers can be used only once.','/archive/2026/01/05/numbermania-1767571501.png','/calculate-the-number-3430/8589'))
NUMBERMANIA: Calculate the number 3430 using numbers [5, 5, 1, 8, 73, 707] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
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If 73bb4 - 64b3b = ac74 find number abc. Multiple solutions may exist. Calculate the number 4128
. Each of the numbers can be used only once.','/archive/2026/01/02/numbermania-1767312301.png','/calculate-the-number-4128/8587'))
NUMBERMANIA: Calculate the number 4128 using numbers [7, 4, 1, 3, 63, 962] 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/2026/01/01/magic-square-1767225944.png','/MAGIC-SQUARE-Calculate-A-B-C/8586'))
The aim is to place the some numbers from the list (5, 7, 11, 14, 16, 20, 32, 34, 38, 51, 61) 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 ab4b0 - 1bcca = 39b8a find number abc. Multiple solutions may exist. 
