Daily Brain Teasers for Sunday, 24 December 2023
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find number abc
If 70ba9 + a4ccb = 12a197 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 714
NUMBERMANIA: Calculate the number 714 using numbers [2, 2, 1, 1, 87, 542] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Sometimes
Sometimes the person who tries to keep everyone happy is the most lonely person.
MAGIC SQUARE: Calculate A-B+C
The aim is to place the some numbers from the list (1, 5, 8, 10, 24, 28, 31, 37, 39, 43, 46, 58) 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
Julius ElsterBorn 24 Dec 1854; died 6 Apr 1920 at age 65.Johann Philipp Ludwig Julius Elster was a German physicist who had a very productive collaboration with Hans Geitel, and have been called the “Castor and Pollux” of physics.They constructed the first photelectric cell, and photelectric photometer as part of their study of the photoelectric effect and thermal electron emission. They declined to patent these inventions, preferring to share the benefits. From 1884, they researched electrical phenomena in gases, atmospheric electricity, measured the electrical field of the Earth, and in 1899 were the first to determine the charge on falling raindrops from thunderclouds. When they investigated radioactivity, they regarded it as due to a spontaneous release of energy by the atoms. They showed that lead is not in itself radioactive, and that conductivity of the atmosphere was due to ionization from radioactive substances.« |
Find number abc
If 95c80 - 8bc59 = 90a1 find number abc. Multiple solutions may exist.
#brainteasers #math
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 7524
NUMBERMANIA: Calculate the number 7524 using numbers [2, 8, 6, 1, 41, 947] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If b9a6b - 4c6c9 = ca928 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 386
NUMBERMANIA: Calculate the number 386 using numbers [7, 7, 4, 3, 54, 196] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
