Daily Brain Teasers for Wednesday, 17 September 2025
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find number abc
If 84c0b - a1b69 = 5c4a8 find number abc. Multiple solutions may exist.
#brainteasers #math
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 786
NUMBERMANIA: Calculate the number 786 using numbers [5, 1, 8, 1, 29, 588] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
You can own a sheep, or ron...
You can own a sheep, or fleece it.
Find number abc
If abccc - b599b = 3ac5b find number abc. Multiple solutions may exist.
#brainteasers #math
Merrill W. ChaseBorn 17 Sep 1905; died 5 Jan 2004 at age 98.American immunologist who made groundbreaking discoveries in cellular immunology and experimental allergy. In the early 1940's, by transferring white blood cells between guinea pigs he found an immunity in the donor against the tuberculosis organism was also transferred. Thus he discovered a new class of immune response - cell-mediated immunity (which aids antibodies in protecting against disease). By the 1950s, using improved cell culture techniques, other experimenters identified lymphocyte cells (about 25% of white blood cells) as responsible for immunity, and later found different types. T cells are derived from the thymus mediated cellular immunity, and B cells from the bursa of Fabricius (an outgrowth of the cloaca in birds).« |
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
Find number abc
If 67333 - b835b = a898c find number abc. Multiple solutions may exist.
#brainteasers #math
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
