Daily Brain Teasers for Sunday, 26 January 2025
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find number abc
If ba1b0 + 27b4c = 866ac find number abc. Multiple solutions may exist.
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.
Calculate the number 5447
NUMBERMANIA: Calculate the number 5447 using numbers [1, 3, 7, 9, 40, 496] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
An opening joke...
Not too long ago a large seminar was held for ministers in training.
Among the speakers were many well known motivational speakers. One such boldly approached the pulpit and, gathering the entire crowd's attention, said, "The best years of my life were spent in the arms of a woman that wasn't my wife!"
The crowd was shocked! He followed up by saying, "And that woman was my mother!" - The crowd burst into laughter and he gave his speech which, went over well.
About a week later one of the ministers who had attended the seminar decided to use that joke in his sermon. As he shyly approached the pulpit one sunny Sunday, he tried to rehearse the joke in his head. It seemed a bit foggy to him this morning.
Getting to the microphone he said loudly, "The greatest years of my life were spent in the arms of another woman that was not my wife!"
His congregation sat shocked. After standing there for almost 10 seconds trying to recall the second half of the joke, the pastor finally blurted out "...and I can't remember who she was!"
MAGIC SQUARE: Calculate A-B*C
The aim is to place the some numbers from the list (19, 20, 21, 22, 26, 27, 30, 32, 37, 41, 54) 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.
Ernst Heinrich WeberDied 26 Jan 1878 at age 82 (born 24 Jun 1795).German anatomist and physiologist whose fundamental studies of the sense of touch introduced a concept, important to psychology and sensory physiology, that of the "just-noticeable difference", the smallest difference perceivable between two similar stimuli. With his brother Eduard Friedrich Weber (1806-71) he discovered the inhibitory power of the vagus nerve (1845). With another brother, W. E. Weber, he made studies of acoustics and wave motion. He formuled Weber's law: that the increase in stimulus necessary to produce an increase in sensation is not fixed but depends on the strength of the preceding stimulus. |
Find number abc
If 9029a - bb88a = 23ca0 find number abc. Multiple solutions may exist.
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.
Calculate the number 1895
NUMBERMANIA: Calculate the number 1895 using numbers [3, 6, 6, 4, 52, 535] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Find number abc
If abaab - c3a8b = 2699b find number abc. Multiple solutions may exist.
Calculate the number 6637
NUMBERMANIA: Calculate the number 6637 using numbers [5, 9, 2, 1, 60, 749] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
MAGIC SQUARE: Calculate A-B*C
The aim is to place the some numbers from the list (2, 3, 5, 6, 7, 9, 15, 16, 18, 23, 45, 74) 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.
