|
Monthly Archive - July 2026brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1 to 10. |
Calculate the number 883
. Each of the numbers can be used only once.','/archive/2026/07/31/numbermania-1785456302.png','/calculate-the-number-883/8791'))
NUMBERMANIA: Calculate the number 883 using numbers [5, 2, 9, 7, 27, 823] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Correct answers: 0
#brainteasers #math #numbermania
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/2026/07/30/magic-square-1785369949.png','/MAGIC-SQUARE-Calculate-A-B-C/8790'))
The aim is to place the some numbers from the list (12, 13, 16, 20, 21, 24, 29, 30, 32, 33, 59) 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. Correct answers: 0
#brainteasers #math #magicsquare
Find number abc
)
If 65c5b - b5ac3 = 3a50a find number abc. Multiple solutions may exist. Correct answers: 1
#brainteasers #math
Buying Stamps for Hanukkah
A woman goes to the post office to buy stamps for her Hanukkah cards.
She says to the clerk, "May I have 50 Hanukkah stamps?"
The clerk says, "What denomination?"
The woman replies, "Oh my. Has it come to this? Give me 6 Orthodox, 12 Conservative, and 32 Reform."
She says to the clerk, "May I have 50 Hanukkah stamps?"
The clerk says, "What denomination?"
The woman replies, "Oh my. Has it come to this? Give me 6 Orthodox, 12 Conservative, and 32 Reform."
Which is a winning combination of digits?
. 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/2026/07/28/mastermind-1785197101.png','/Which-is-a-winning-combination-of-digits/8788'))
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. Correct answers: 0
#brainteasers #mastermind
Calculate the number 648
. Each of the numbers can be used only once.','/archive/2026/07/27/numbermania-1785110701.png','/calculate-the-number-648/8787'))
NUMBERMANIA: Calculate the number 648 using numbers [6, 1, 8, 4, 36, 267] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Correct answers: 0
#brainteasers #math #numbermania
Find number abc
)
If b7aaa + 3b30c = 489a8 find number abc. Multiple solutions may exist. Correct answers: 0
#brainteasers #math
Which is a winning combination of digits?
. 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/2026/07/25/mastermind-1784937901.png','/Which-is-a-winning-combination-of-digits/8785'))
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. Correct answers: 0
#brainteasers #mastermind
Calculate the number 2589
. Each of the numbers can be used only once.','/archive/2026/07/24/numbermania-1784851501.png','/calculate-the-number-2589/8784'))
NUMBERMANIA: Calculate the number 2589 using numbers [8, 8, 3, 9, 99, 965] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Correct answers: 0
#brainteasers #math #numbermania
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/2026/07/23/magic-square-1784765144.png','/MAGIC-SQUARE-Calculate-A-B-C/8783'))
The aim is to place the some numbers from the list (17, 20, 22, 23, 26, 28, 34, 41, 44, 46, 82) 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. Correct answers: 0
#brainteasers #math #magicsquare
Find number abc
)
If 5aa85 - a4c55 = ac53b find number abc. Multiple solutions may exist. Correct answers: 0
#brainteasers #math
