Daily Brain Teasers for Sunday, 14 January 2024
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find number abc
If a4c2c + 64a96 = b3932b find number abc. Multiple solutions may exist.
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 1134
NUMBERMANIA: Calculate the number 1134 using numbers [6, 4, 6, 7, 67, 877] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Earning His Stripes
A young reporter went to a retirement home to interview an aged but legendary explorer. The reporter asked the old man to tell him the most frightening experience he had ever had. The old explorer looked into the distance and warmed to his task.
“Once, I was hunting Bengal tigers in the jungles of India,” he began: “I was on a narrow path and my faithful native gun bearer was behind me. Suddenly, the largest tiger I've ever seen in my life leaped onto the path in front of us. I turned to get my weapon only to find my gun bearer had fled. The tiger leaped toward me with a mighty ROARRRR! I soiled myself."
“Under those circumstances, sir, I think anyone would have done the same," the reporter said.
The old explorer replied: "No, not then -– just now when I went 'ROARRRR!'”
MAGIC SQUARE: Calculate A-B*C
The aim is to place the some numbers from the list (8, 9, 11, 16, 17, 18, 20, 62, 63, 65, 84) 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.
Dennis FlanaganDied 14 Jan 2005 at age 85 (born 22 Jul 1919). American editor who steered the Scientific American for 37 years (1947-84) and established a new style for the magazine of inviting scientists to write its articles, with support from an editor and illustrator, aimed at the general reader. Those writers included such eminent scientists as Albert Einstein, Linus Pauling and J. Robert Oppenheimer. The first issue of Scientific American was on 28 Aug 1845, but it was the new leadership of new owners (1847), Orson Munn and Alfred Eli Beach, who made it prospect. A century later, Flanagan rescued the magazine in the post WW II years when it was failing financially. With partners and investors, and his editorial innovation, the circulation rose from 40,000 to 600,000 by the time he retired. Flanagan had lost his hearing at age 9, but learned to lip-read.« |
Find number abc
If 92717 - 2baba = c8a7b find number abc. Multiple solutions may exist.
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 2539
NUMBERMANIA: Calculate the number 2539 using numbers [6, 8, 3, 9, 32, 251] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Find number abc
If 579c7 + 975aa = 155b60 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 4020
NUMBERMANIA: Calculate the number 4020 using numbers [7, 8, 3, 4, 95, 352] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.