Daily Brain Teasers for Sunday, 13 September 2026
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find number abc
If 8b3ba - aca1b = 106c2 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 806
NUMBERMANIA: Calculate the number 806 using numbers [3, 3, 2, 9, 81, 720] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Try To Explain Women
A man dies and goes to Heaven. He gets to meet GOD and asks GOD if he can ask him a few questions.
"Sure," GOD says, "Go right ahead".
"OK," the man says. "Why did you make women so pretty?"
GOD says, "So you would like them."
"OK," the guy says. "But how come you made them so beautiful?"
"So you would LOVE them", GOD replies.
The man ponders a moment and then asks, "But why did you make them such airheads?"
GOD says, "So they would love you!"
"Sure," GOD says, "Go right ahead".
"OK," the man says. "Why did you make women so pretty?"
GOD says, "So you would like them."
"OK," the guy says. "But how come you made them so beautiful?"
"So you would LOVE them", GOD replies.
The man ponders a moment and then asks, "But why did you make them such airheads?"
GOD says, "So they would love you!"
MAGIC SQUARE: Calculate A*B+C
The aim is to place the some numbers from the list (2, 4, 7, 8, 9, 13, 21, 23, 27, 59, 79, 95) 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
Oliver EvansBorn 13 Sep 1755; died 15 Apr 1819 at age 63.American millwright and inventor who designed the first automatic corn mill, pioneered the high-pressure steam engine (US patent, 1790) and created the first continuous production line (1784). By about age 19, he invented a machine for bending and cutting off the wires in textile carding combs. His ideas for an automatic corn mill began in 1782, but the invention's development was not completed until 1790. The mill used bucket elevators to raise the grain, conveying devices including a horizontal screw conveyor, and a “hopper boy”to cool and dry the meal before gathering it into a hopper feeding the bolting cylinder. Together, this took incoming wheat and delivered flour packed in barrels. |
Find number abc
If aa428 + 42a1b = c5ca8 find number abc. Multiple solutions may exist.
#brainteasers #math
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 5096
NUMBERMANIA: Calculate the number 5096 using numbers [2, 6, 8, 8, 52, 586] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If a99b6 + 1aa1b = 7a4c8 find number abc. Multiple solutions may exist.
#brainteasers #math
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 2340
NUMBERMANIA: Calculate the number 2340 using numbers [9, 5, 3, 1, 86, 486] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
