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Math (page 14)These 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 131 to 140. |
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/2025/12/04/magic-square-1764806746.png','/MAGIC-SQUARE-Calculate-A-B-C/8558'))
The aim is to place the some numbers from the list (5, 8, 10, 12, 18, 21, 23, 33, 36, 38, 83) 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 cb55c - a0c06 = bbbc8 find number abc. Multiple solutions may exist. Calculate the number 3316
. Each of the numbers can be used only once.','/archive/2025/12/01/numbermania-1764547501.png','/calculate-the-number-3316/8555'))
NUMBERMANIA: Calculate the number 3316 using numbers [9, 4, 7, 7, 45, 761] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. 
Bar girls and hockey players
A man walked into the produce section of his local supermarket and asked to buy half a head of lettuce. The boy working in that department told him that they only sold whole heads of lettuce.
The man was insistent that the boy ask his manager about the matter. Walking into the back room, the boy said to his manager, "Some asshole wants to buy a half a head of lettuce."
As he finished his sentence, he turned to find the man standing right behind him, so he added, "and this gentleman kindly offered to buy the other half."
The manager approved the deal and the man went on his way. Later the manager found the boy and said,
"I was impressed with the way you got yourself out of that situation earlier. We like people who think on their feet here. Where are you from, son?"
"Canada, sir," the boy replied.
"Well, why did you leave Canada?" the manager asked.
The boy said, "Sir, there's nothing but bar girls and hockey players up there."
"Really!" said the manager. "My wife is from Canada!
The boy replied, "No kidding???? Who did she play for?"
Joke found on forums.anandtech.com, posted on Sep 5, 2001 by forum user Wingznut
Find number abc
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If a02b4 + 477c0 = cb7a44 find number abc. Multiple solutions may exist. 
Calculate the number 4015
. Each of the numbers can be used only once.','/archive/2025/11/28/numbermania-1764288302.png','/calculate-the-number-4015/8552'))
NUMBERMANIA: Calculate the number 4015 using numbers [8, 4, 1, 2, 90, 967] 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/2025/11/27/magic-square-1764201927.png','/MAGIC-SQUARE-Calculate-A-B-C/8551'))
The aim is to place the some numbers from the list (5, 12, 15, 21, 24, 26, 27, 29, 33, 35) 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
)
If 8ccbc + 84aa2 = b64a42 find number abc. Multiple solutions may exist. Calculate the number 3763
. Each of the numbers can be used only once.','/archive/2025/11/24/numbermania-1763942701.png','/calculate-the-number-3763/8548'))
NUMBERMANIA: Calculate the number 3763 using numbers [2, 9, 1, 7, 98, 329] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
)
If 8abb5 + 5c555 = 1bc000 find number abc. Multiple solutions may exist. Calculate the number 9896
. Each of the numbers can be used only once.','/archive/2025/11/21/numbermania-1763683501.png','/calculate-the-number-9896/8545'))
NUMBERMANIA: Calculate the number 9896 using numbers [5, 7, 1, 6, 32, 828] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. 
