Daily Brain Teasers for Sunday, 27 September 2026
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find number abc
If a19ab + b1814 = ca746 find number abc. Multiple solutions may exist.
#brainteasers #math
Calculate the number 1632
NUMBERMANIA: Calculate the number 1632 using numbers [4, 1, 7, 1, 76, 382] 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 (16, 17, 25, 30, 31, 39, 40, 53, 54, 62, 84) 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
You Fool
A pastor was opening his mail one morning and one envelope had only a single sheet of paper with a single word printed on it: “FOOL!”
The following Sunday the priest announced, “I have known many people who have written letters and forgotten to sign their name. But this week I received a letter from someone who signed his name and had forgotten to write a letter.”
The following Sunday the priest announced, “I have known many people who have written letters and forgotten to sign their name. But this week I received a letter from someone who signed his name and had forgotten to write a letter.”
Find number abc
If b45a0 + cb7bb = 8ca8b find number abc. Multiple solutions may exist.
#brainteasers #math
Guillaume RondeletBorn 27 Sep 1507; died 30 Jul 1566 at age 58.French naturalist and physician who contributed substantially to zoology by his descriptions of marine animals, primarily of the Mediterranean Sea. After studying at Montpellier, he later travelling widely through Europe with his patron Cardinal Tournon. Returning to Montpellier in 1545, he taught medicine. His real interest, however, was zoology, and in 1554 he published his massive compendium on aquatic life, Libri de piscibus marinis in quibus verae piscium effigies expressae sunt, which covered far more marine life than any earlier work in the field. This laid the foundation for later ichthyological research and was the standard reference work for over a century. He also published various other works on diagnosis and several pharmacological works. |
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 2204
NUMBERMANIA: Calculate the number 2204 using numbers [1, 3, 5, 8, 92, 335] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If c02b0 + 555ac = b5a4c 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 4343
NUMBERMANIA: Calculate the number 4343 using numbers [4, 9, 4, 4, 52, 535] 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 (9, 10, 14, 15, 16, 21, 29, 62, 63, 69, 75) 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
