Daily Brain Teasers for Friday, 24 September 2021
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Calculate the number 824
NUMBERMANIA: Calculate the number 824 using numbers [2, 6, 3, 5, 61, 942] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. The first user who solved this task is Fazil Hashim.
#brainteasers #math #numbermania
MAGIC SQUARE: Calculate A-B-C
The aim is to place the some numbers from the list (4, 7, 10, 14, 15, 17, 18, 20, 21, 85, 87) 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. The first user who solved this task is Nasrin 24 T.
#brainteasers #math #magicsquare
Find number abc
If a63cb + 45aac = 13ccbc find number abc. Multiple solutions may exist. The first user who solved this task is Nasrin 24 T.
#brainteasers #math
Revesing the car...
Revesing the car:
"Ahh, this takes me back."
"Ahh, this takes me back."
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. The first user who solved this task is Nasrin 24 T.
#brainteasers #mastermind
Michael J. S. DewarBorn 24 Sep 1918; died 10 Oct 1997 at age 79. Michael James Steuart Dewar was a Scottish organic chemist who was born in India to Scottish parents in the Civil Service there, and attended boarding school in England. His career included both industrial and academic positions in England and the United States. As a theoretician, he was an early master of molecular orbital theory and wrote The Electronic Theory of Organic Chemistry (1949), the first book applying molecular orbital theory to organic chemistry. He experimental work, he studied carbenium ions, boron chemistry, superconductors, liquid crystals. the biosynthesis of fatty acids, and phenyl radicals. He developed sophisticated semi-empirical for quantitative molecular orbital methods on large organic molecules, novel ions, conjugated systems and sigma-bonded arrays He devoted much effort to the study of chemical reactivity.« |
Calculate the number 3656
NUMBERMANIA: Calculate the number 3656 using numbers [1, 3, 9, 2, 66, 384] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. The first user who solved this task is Nasrin 24 T.
#brainteasers #math #numbermania
Find number abc
If b260c - 6a0a1 = 351b find number abc. Multiple solutions may exist. The first user who solved this task is Nasrin 24 T.
#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. The first user who solved this task is Nasrin 24 T.
#brainteasers #mastermind
Calculate the number 1866
NUMBERMANIA: Calculate the number 1866 using numbers [5, 6, 1, 8, 89, 237] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. The first user who solved this task is Nasrin 24 T.
#brainteasers #math #numbermania
MAGIC SQUARE: Calculate A+B-C
The aim is to place the some numbers from the list (21, 22, 24, 25, 26, 28, 31, 32, 34, 50, 77) 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. The first user who solved this task is Nasrin 24 T.
#brainteasers #math #magicsquare
Find number abc
If 89c99 - a80cc = cbc33 find number abc. Multiple solutions may exist. The first user who solved this task is Nasrin 24 T.
#brainteasers #math
