|
Brain Teasers (page 4)puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, sport... These are the tasks listed 31 to 40. |
Calculate the number 970
. Each of the numbers can be used only once.','/archive/2026/08/21/numbermania-1787270701.png','/calculate-the-number-970/8812'))
NUMBERMANIA: Calculate the number 970 using numbers [8, 4, 8, 1, 25, 115] 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/2026/08/20/magic-square-1787184373.png','/MAGIC-SQUARE-Calculate-A-B-C/8811'))
The aim is to place the some numbers from the list (5, 7, 15, 29, 30, 31, 32, 39, 40, 47, 78, 96) 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 77ab7 - c3a20 = 1a037 find number abc. Multiple solutions may exist. 
What goes through a cat's mind
Tuesday - Today my attempt to kill my captors by weaving aroundtheir feet while they were walking almost succeeded, must try this atthe top of the stairs. In an attempt to disgust and repulse these vile oppressors, I once again induced myself to throw up on their favorite chair...must try this on their bed.
Wednesday - Slept all day so that I could annoy my captors with sleep depriving, incessant pleas for food at ungodly hours of the night.
Thursday - Decapitated a mouse and brought them the headless body, in attempt to make them aware of what I am capable of, and to try to strike fear into their hearts. They only cooed and condescended about what a good little cat I was...Hmmm. Not working according to plan......
Friday - I am finally aware of how sadistic they are. For no good reason I was chosen for the water torture. This time however it included a burning foamy chemical called 'shampoo.' What sick minds could invent such a liquid. My only consolation is the piece of thumb still stuck between my teeth.
Saturday - There was some sort of gathering of their accomplices. I was placed in solitary throughout the event. However, I could hear the noise and smell the foul odor of the glass tubes they call 'beer.' More importantly I overheard that my confinement was due to MY power of 'allergies.' Must learn what this is and how to use it to my advantage.
Sunday - I am convinced the other captives are flunkies and maybe snitches. The dog is routinely released and seems more than happy to return. He is obviously a half-wit. The Bird on the other hand has got to be an informant. He has mastered their frightful tongue (something akin to molespeak) and speaks with them regularly. I am certain he reports my every move. Due to his current placement in the metal room his safety is assured. But I can wait, it is only a matter of time.
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/2026/08/18/mastermind-1787011501.png','/Find-the-right-combination/8809'))
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 4742
. Each of the numbers can be used only once.','/archive/2026/08/17/numbermania-1786925101.png','/calculate-the-number-4742/8808'))
NUMBERMANIA: Calculate the number 4742 using numbers [5, 6, 7, 2, 32, 910] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
)
If 72abc + 8aa6b = abcca8 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/2026/08/15/mastermind-1786752301.png','/Find-the-right-combination/8806'))
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 903
. Each of the numbers can be used only once.','/archive/2026/08/14/numbermania-1786665901.png','/calculate-the-number-903/8805'))
NUMBERMANIA: Calculate the number 903 using numbers [1, 4, 4, 7, 25, 871] 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/2026/08/13/magic-square-1786579546.png','/MAGIC-SQUARE-Calculate-A-B-C/8804'))
The aim is to place the some numbers from the list (21, 22, 26, 29, 30, 34, 36, 37, 41, 48, 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 5a1c1 - 41bac = 15c1b find number abc. Multiple solutions may exist. 
