Daily Brain Teasers for Monday, 25 August 2025
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Calculate the number 1178
NUMBERMANIA: Calculate the number 1178 using numbers [8, 2, 7, 6, 17, 255] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Find number abc
If ba9cc + a696b = c09b6 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.

One wish
A guy walking along the beach finds a bottle and picks it up.
A genie pops out and says, "Thanks for letting me out. For your kindness I will grant you one wish."
The guys says, "I've always wanted to go to Hawaii, but I can't because I'm afraid to fly and ships make me deathly sick. My wish is for you to build a road from here to Hawaii."
The genie says, "I'm sorry, but I don't think I can do that. Just think of all the work involved. Think of the huge pilings we'd need to hold up that highway and how deep they would have to be to reach the bottom of the ocean. And think of all the cement that would be needed. Plus, since it's such a long span, there would have to be gas stations and rest stops along the way. No, that's just too much to ask. Impossible."
The guy says, "Well, there is one thing I've always wanted to know. I'd like to be able to understand women...what makes them laugh and cry...you know, what makes them tick."
The genie thinks a second, then asks, "You want two lanes or four?'
Calculate the number 960
NUMBERMANIA: Calculate the number 960 using numbers [6, 4, 3, 2, 17, 911] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Max EythDied 25 Aug 1906 at age 70 (born 6 May 1836). Eduard Friedrich Maximilian von Eyth was a German engineer, inventor and writer who was a pioneer in the mechanization of agriculture. With an education in Germany as a machine engineer, in 1861, he moved to England, the centre of engineering. From 1863, he was employed by John Fowler, manufacturer of a revolutionary new farm implement, the steam plow. Eyth became a global salesman seeking new markets for Fowler's technology. He left the company in 1882 and returned to Germany, where in 1884, he founded the German Agricultural Society, and worked to support the German farmer. He retired in 1896 and moved from Berlin to Ulm to be with his aging mother, and where for the remainder of his life, he became a writer, using his experiences to demythologize and popularize technological progress. In one work, he addressed the engineering aspects of the Tay Bridge collapse.« |
MAGIC SQUARE: Calculate A*B*C
The aim is to place the some numbers from the list (8, 10, 16, 18, 30, 32, 38, 39, 51, 53, 59, 64, 85) 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 cba91 + 13b91 = 9a1ba find number abc. Multiple solutions may exist.
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.
Calculate the number 963
NUMBERMANIA: Calculate the number 963 using numbers [3, 8, 6, 8, 99, 136] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Find number abc
If cab78 - ba3b6 = b99cb 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.