Daily Brain Teasers for Thursday, 20 August 2026
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
MAGIC SQUARE: Calculate A-B-C
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.
#brainteasers #math #magicsquare
Find number abc
If 77ab7 - c3a20 = 1a037 find number abc. Multiple solutions may exist.
#brainteasers #math
Find the right combination
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.
#brainteasers #mastermind
Who is the Boss?
A guy is doing some handyman work at a house. Across the room is a large gray parrot on a perch. The family dog comes into the room and jumps up on the couch. The parrot says, “Get off the couch!” and the dog jumps down immediately.
A small child comes into the room with toys and the parrot says, “Go to your room!” and the child picks up his toys leaves without hesitation.
The guy turns to the parrot and says, “I’ve never seen anything like that before.'
The parrot looks at the guy and says, “Get back to work!”
Calculate the number 4742
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.
#brainteasers #math #numbermania
Electric train signallingIn 1872, William Robinson was issued a U.S. patent No.130,661 for electric train signalling. |
Find number abc
If 72abc + 8aa6b = abcca8 find number abc. Multiple solutions may exist.
#brainteasers #math
Find the right combination
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.
#brainteasers #mastermind
Calculate the number 903
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.
#brainteasers #math #numbermania
MAGIC SQUARE: Calculate A-B-C
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.
#brainteasers #math #magicsquare
Find number abc
If 5a1c1 - 41bac = 15c1b find number abc. Multiple solutions may exist.
#brainteasers #math
Find the right combination
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.
#brainteasers #mastermind
