Daily Brain Teasers for Saturday, 28 September 2024
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
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.
Calculate the number 4152
NUMBERMANIA: Calculate the number 4152 using numbers [4, 6, 6, 6, 42, 703] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
MAGIC SQUARE: Calculate A*B-C
The aim is to place the some numbers from the list (20, 22, 26, 28, 29, 35, 51, 53, 60, 80) 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.
Smart Blonde
A girl came skipping home FROM school one day. "Mommy, Mommy," she yelled, "we were counting today, and all the other kids could only count to four, but I counted to 10. See? 1, 2, 3, 4, 5, 6,7, 8, 9, 10!"
"Very good," said her mother.
"Is it because I'm blonde, Mommy?"
"Yes, Honey, it's because you're blonde."
The next day the girl came skipping home FROM school. "Mommy, Mommy," She yelled, "we were saying the alphabet today, and all the other kids could only say it to D, but I said it to G. See? A,b, c, d, e, f, g!"
"Very good," said her mother.
"Is it because I'm blonde, Mommy?"
"Yes, Honey, it's because you're blonde."
The next day the girl came skipping home FROM school. "Mommy, Mommy," she yelled, "we were in gym class today, and when we showered, all the other girls had flat chests, but I have these!" And she lifted her tank top to reveal a pair of 36Cs.
"Very good," said her embarrassed mother.
"Is it because I'm blonde, mommy?"
"No, Honey, it's because you're 25."
Find number abc
If 3b7ca + 39a88 = 7bcbc find number abc. Multiple solutions may exist.
Donati's cometIn 1858, Donati's comet (discovered by Giovanni Donati, 1826-1873) became the first to be photographed. It was a bright comet that developed a spectacular curved dust tail with two thin gas tails, captured by an English commercial photographer, William Usherwood, using a portrait camera at a low focal ratio. At Harvard, W.C. Bond, attempted an image on a collodion plate the following night, but the comet shows only faintly and no tail can be seen. Bond was subsequently able to evaluate the image on Usherwood's plate. The earliest celestial daguerreotypes were made in 1850-51, though after the Donati comet, no further comet photography took place until 1881, when P.J.C. Janssen and J.W. Draper took the first generally recognized photographs of a comet.* |
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.
Calculate the number 4553
NUMBERMANIA: Calculate the number 4553 using numbers [3, 9, 4, 7, 55, 435] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Find number abc
If a3377 + a86a3 = ba2c7c find number abc. Multiple solutions may exist.
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.
Calculate the number 944
NUMBERMANIA: Calculate the number 944 using numbers [3, 4, 1, 8, 54, 768] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
MAGIC SQUARE: Calculate A-B+C
The aim is to place the some numbers from the list (7, 12, 17, 19, 24, 25, 29, 30, 35, 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.
