Daily Brain Teasers for Saturday, 13 September 2025
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
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 6662
NUMBERMANIA: Calculate the number 6662 using numbers [6, 8, 1, 4, 33, 934] 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, 11, 12, 24, 29, 30, 35, 40, 41, 52) 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
Rednecks Go Fishing
Two rednecks go on a fishing trip. They rent all the equipment - the reels, the rods, the wading suits, the rowboat, the car, and even a cabin in the woods. I mean they spend a fortune!
The first day they go fishing, but they don't catch anything. The same thing happens on the second day, and on the third day. It goes on like this until finally, on the last day of their vacation, one of the men catches a fish.
As they're driving home they're really depressed. One guy turns to the other and says, "Do you realize that this one lousy fish we caught cost us fifteen hundred bucks?"
The other guy says, "Wow! Then it's a good thing we didn't catch any more!"
Find number abc
If 67333 - b835b = a898c find number abc. Multiple solutions may exist.
#brainteasers #math
Ice shipped to CalcuttaIn 1833, a the first imported shipment of ice arrived in Calcutta, India, from Boston, Mass., U.S. in the specially insulated hold of the Clipper Tuscany, which had loaded and sailed on 6 - 7 May 1833 with 180 tons of ice. The ice, in 2 - 3 cu.ft. blocks, had been cut from local lakes in winter, and stored since then. The entrepeneur was Fredric Tudor, an ice merchant of Boston. During the over four month voyage, about 80 tons was lost, but in the Indian unit of weight, the amount that arrived was about 3,000 maund (1 maund = 82.6 pounds). It was priced at four annas per seer (about 2-lbs). At first sales were disappointing, until the local residents became accustomed to this novelty for cooling drinks. India became a profitable export market for Tudor for over two decades.« |
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 7166
NUMBERMANIA: Calculate the number 7166 using numbers [5, 3, 6, 4, 57, 868] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If 3bc74 + 40c63 = 7ab37 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 254
NUMBERMANIA: Calculate the number 254 using numbers [4, 9, 9, 8, 17, 205] 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, 8, 12, 17, 19, 22, 23, 43, 46, 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.
#brainteasers #math #magicsquare
