BRAIN TEASERS
Monthly Archive - December 2025

Monthly Archive - December 2025

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1 to 10.
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Find number abc

If ab4b0 - 1bcca = 39b8a find number abc. Multiple solutions may exist.
Correct answers: 0
CHECK ANSWER
#brainteasers #math
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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.
Correct answers: 1
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 251

NUMBERMANIA: Calculate the number 251 using numbers [3, 2, 8, 2, 35, 143] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
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#brainteasers #math #numbermania

In order to pay his medical sc...

In order to pay his medical school tuition, a student was working two jobs over the summer. One was as a butcher's assistant and the other as a hospital orderly, both jobs that required the young man wear a long white coat.
One night he was wheeling a woman into surgery when she sat up suddenly, looked him in the eye, and screamed, "God save me! It's the butcher!"
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Find number abc

If baa21 + 13044 = c8aba find number abc. Multiple solutions may exist.
Correct answers: 0
CHECK ANSWER
#brainteasers #math
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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.
Correct answers: 0
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 993

NUMBERMANIA: Calculate the number 993 using numbers [5, 3, 5, 6, 73, 778] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
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#brainteasers #math #numbermania
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MAGIC SQUARE: Calculate A*B*C

The aim is to place the some numbers from the list (2, 6, 10, 15, 19, 22, 23, 28, 63, 67, 72, 85) 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.
Correct answers: 0
CHECK ANSWER
#brainteasers #math #magicsquare
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Find number abc

If 6b425 + aca99 = c40224 find number abc. Multiple solutions may exist.
Correct answers: 0
CHECK ANSWER
#brainteasers #math
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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.
Correct answers: 0
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 2085

NUMBERMANIA: Calculate the number 2085 using numbers [2, 6, 5, 6, 87, 790] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
CHECK ANSWER
#brainteasers #math #numbermania
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Wilhelm His

Born 9 Jul 1831; died 1 May 1904 at age 72. Wilhelm His, born in Basel, Switzerland, was a German anatomist and embryologist who created the science of histogenesis, or the study of the embryonic origins of different types of animal tissue. His discovery, in 1886, that each nerve fibre stems from a single nerve cell was essential to the development of the neuron theory. He invented the microtome - a device to slice very thin serial specimens for microscope slides (1865). With it, he could examine embryos. He was the first to accurate describe the human embryo.
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