Daily Brain Teasers for Friday, 20 December 2024
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Calculate the number 3461
NUMBERMANIA: Calculate the number 3461 using numbers [3, 4, 2, 8, 37, 879] 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, 16, 25, 26, 32, 48, 49, 55, 74, 96) 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 8a18c + 80b3b = 1631a4 find number abc. Multiple solutions may exist.
#brainteasers #math
A blonde walks into the police...
A blonde walks into the police department looking for a job. The officer wants to ask her a few questions....
Officer: What's 2+2?
Blonde: Ummmmm... 4!
Officer: What's the square root of 100?
Blonde: Ummmm... 10!
Officer: Good! Now, who killed Abraham Lincoln?
Blonde: Ummmm... I dunno.
Officer: Well, you can go home and think about it. Come back tomorrow.
The blonde goes home and calls up one of her friends, who asks her if she got the job. The blonde says, excitedly, "Not only did I get the job, I'm already working on a murder case!"
Officer: What's 2+2?
Blonde: Ummmmm... 4!
Officer: What's the square root of 100?
Blonde: Ummmm... 10!
Officer: Good! Now, who killed Abraham Lincoln?
Blonde: Ummmm... I dunno.
Officer: Well, you can go home and think about it. Come back tomorrow.
The blonde goes home and calls up one of her friends, who asks her if she got the job. The blonde says, excitedly, "Not only did I get the job, I'm already working on a murder case!"
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
First U.S. Nobel physicistIn 1907, the first U.S. scientist to receive the Nobel Prize was Albert Michelson, a German-born American physicist who received the Nobel Prize for Physics “for his optical precision instruments and the spectroscopic and metrological investigations.” He designed the highly accurate Michelson interferometer and used it to accurately measure the speed of light and establish it as a fundamental constant. In 1887, with Edward Morley, he also used it in an attempt to measure the velocity of the earth through the ether (yielding null results that later led Albert Einstein to his theory of relativity). He measured the standard meter bar in Paris to be 1,553,163.5 wavelengths of the red cadmium line (1892-3).« |
Calculate the number 5109
NUMBERMANIA: Calculate the number 5109 using numbers [3, 5, 6, 1, 22, 533] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If a887c + 9c229 = ba5b05 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 769
NUMBERMANIA: Calculate the number 769 using numbers [2, 9, 3, 6, 92, 119] 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 (1, 10, 14, 18, 19, 20, 23, 24, 27, 28, 55, 60, 96) 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 5bc00 + b26a6 = 151ba6 find number abc. Multiple solutions may exist.
#brainteasers #math
