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Monthly Archive - May 2026brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1 to 10. |
Calculate the number 2222
. Each of the numbers can be used only once.','/archive/2026/05/15/numbermania-1778803502.png','/calculate-the-number-2222/8718'))
NUMBERMANIA: Calculate the number 2222 using numbers [1, 2, 4, 9, 70, 532] 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/2026/05/14/magic-square-1778717147.png','/MAGIC-SQUARE-Calculate-A-B-C/8717'))
The aim is to place the some numbers from the list (8, 12, 13, 28, 32, 33, 38, 42, 43, 52, 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
)
If 4baab + 537bc = 1030a7 find number abc. Multiple solutions may exist. 
How To Please a Woman
hotel with a sign that reads: "For Women Only." Since they are
without their boyfriends and husbands, they decide to go in.
The bouncer, a very attractive guy, explains to them how it
works. "We have 5 floors. Go up floor-by-floor, and once you
find what you are looking for, you can stay there. It's easy to
decide since each floor has a sign telling you what's inside."
So they start going up and on the first floor the sign reads:
"All the men on this floor are short and plain." The friends
laugh and without hesitation move on to the next floor.
The sign on the second floor reads: "All the men here are short
and handsome." Still, this isn't good enough, so the friends
continue on up.
They reach the third floor and the sign reads: "All the men here
are tall and plain." They still want to do better, and so,
knowing there are still two floors left, they continued on up.
On the fourth floor, the sign is perfect: "All the men here are
tall and handsome." The women get all excited and are going in
when they realize that there is still one floor left. Wondering
what they are missing, they head on up to the fifth floor.
There they find a sign that reads: "There are no men here. This
floor was built only to prove that there is no way to please a
woman."
What a winning combination?
. 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/2026/05/12/mastermind-1778544301.png','/What-a-winning-combination/8715'))
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 595
. Each of the numbers can be used only once.','/archive/2026/05/11/numbermania-1778457901.png','/calculate-the-number-595/8714'))
NUMBERMANIA: Calculate the number 595 using numbers [2, 1, 8, 7, 66, 516] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
)
If 39094 + 5aa93 = 90b8c find number abc. Multiple solutions may exist. Find the right combination
. 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/2026/05/09/mastermind-1778285101.png','/Find-the-right-combination/8712'))
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 4333
. Each of the numbers can be used only once.','/archive/2026/05/08/numbermania-1778198701.png','/calculate-the-number-4333/8711'))
NUMBERMANIA: Calculate the number 4333 using numbers [3, 2, 5, 4, 60, 158] 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/2026/05/07/magic-square-1778112325.png','/MAGIC-SQUARE-Calculate-A-B-C/8710'))
The aim is to place the some numbers from the list (1, 10, 12, 13, 15, 16, 19, 62, 64, 68) 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 9b003 + 9036b = cab36a find number abc. Multiple solutions may exist. 
