Daily Brain Teasers for Saturday, 25 July 2026
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Which is a winning combination of digits?
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 2589
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.
#brainteasers #math #numbermania
MAGIC SQUARE: Calculate A-B*C
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.
#brainteasers #math #magicsquare
Little Johnny attended a horse...
Little Johnny attended a horse auction with his father. He watched as his father moved from horse to horse, running his hands up and down the horse's legs and rump, and chest. After a few minutes, Johnny asked, "Dad, why are you doing that?"
His father replied, "Because when I'm buying horses, I have to make sure that they are healthy and in good shape before I buy."
Johnny, looking worried, said, "Dad, I think the UPS guy wants to buy Mom..."
His father replied, "Because when I'm buying horses, I have to make sure that they are healthy and in good shape before I buy."
Johnny, looking worried, said, "Dad, I think the UPS guy wants to buy Mom..."
Find number abc
If 5aa85 - a4c55 = ac53b find number abc. Multiple solutions may exist.
#brainteasers #math
Five-needle telegraph demonstratedIn 1837, the five-needle telegraph was demonstrated by English inventors, Charles Wheatstone and William Fothergill Cooke. They ran a six-wire telegraph line 2.4-km from Euston to Camden Town along the Great Western Railway Company railway track. They successfully transmitted and received messages. Wheatstone provided the technological skill and is better remembered in the history of the telegraph while Cooke had the business acumen. This first patent (1837) was impractical because the code used simultaneous combinations of five keys, and so was rather cumbersome, limited to only twenty letters (J, C, Q, U, X and Z were omitted). By 1845, they patented the more important single-needle electric telegraph.« |
What a winning 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 6585
NUMBERMANIA: Calculate the number 6585 using numbers [9, 7, 7, 9, 62, 790] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If a896c + 4b7a5 = 7a685 find number abc. Multiple solutions may exist.
#brainteasers #math
Which is a winning combination of digits?
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 3160
NUMBERMANIA: Calculate the number 3160 using numbers [1, 8, 1, 2, 73, 335] 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 (6, 17, 18, 20, 21, 28, 29, 31, 53, 56, 64) 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
