Daily Brain Teasers for Tuesday, 27 May 2025
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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 9848
NUMBERMANIA: Calculate the number 9848 using numbers [7, 8, 4, 9, 11, 887] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Find number abc
If c5ba0 - 4ab4b = 23bca find number abc. Multiple solutions may exist.

Bear Hunting
A hunter ventures into the forest to hunt a bear, armed with his trusty 22-gauge rifle. After some time, he spots an enormous bear, takes aim, and fires. The smoke clears, but the bear has vanished.
Moments later, the bear taps the hunter on the shoulder and says, "Nobody shoots at me and gets away with it. You have two options: I can tear out your throat and eat you, or you can drop your pants, bend over, and I'll do as I please." The hunter, fearing death, drops his pants and bends over, allowing the bear to do as he said.
Once the bear has left, the hunter pulls up his pants and hobbles back into town, bow-legged and furious. He purchases a much larger gun and returns to the forest. He spots the same bear, takes aim, and fires. The smoke clears, and the bear is gone.
The bear taps the hunter on the shoulder once more and says, "You know the drill." Humiliated, the hunter pulls up his pants, drags himself back to town, and buys a bazooka. Now seething with rage, he returns to the forest, spots the bear, aims, and fires. The blast from the bazooka sends him sprawling onto his back.
As the smoke clears, the bear looms over him and says, "This isn't really about hunting for you, is it?"
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.
Frederic Eugene IvesDied 27 May 1937 at age 81 (born 17 Feb 1856).American photographer and inventor of the halftone process, a method of reproducing photographs on a printing press. Prior to this process, photos and illustrations were reproduced from hand-engraved plates. In this way printers could reproduce line drawings, but not the shades of gray in a photograph because printing presses cannot print gray - only black and white. Ives invented a screen that would convert a photograph into a pattern of tiny dots. Large dots form where the image is dark, and tiny dots where the image is light, thus giving the illusion of shades of gray. In 1881, he was the first to make a three-colour print from halftone blocks. Further inventions in photography and colour printing yielded 70 patents.(Image: 1996 U.S. postage stamp.) |
Calculate the number 4100
NUMBERMANIA: Calculate the number 4100 using numbers [5, 6, 7, 9, 26, 609] 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, 24, 28, 30, 32, 52, 54, 56, 79) 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.
Find number abc
If b64a3 + 647a6 = a6aacb 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 679
NUMBERMANIA: Calculate the number 679 using numbers [1, 2, 7, 2, 76, 599] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Find number abc
If 8caac + 26260 = 111b0c find number abc. Multiple solutions may exist.