Daily Brain Teasers for Wednesday, 23 July 2025
|
puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find number abc
If 69c00 - 1b92a = aac7a 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 1177
NUMBERMANIA: Calculate the number 1177 using numbers [5, 4, 4, 3, 11, 289] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
A lawyer, sitting next to blonde on a long flight, was pestering her to play a game...
The blonde politely declined and tried to get some sleep. The lawyer made another offer: 'Okay, if you don't know the answer you pay me $5, but if I don't know the answer, I will pay you $1000' The blonde agreed.
The lawyer asked the first question. 'What's the distance from the earth to the moon?'
The blonde silently reached into her purse, pulled out a five-dollar bill, and handed it to the lawyer. Then she asked the lawyer, 'What goes up a hill with three legs, and comes down with four?' And went back to sleep
The lawyer did research on his iPhone, called his buddies etc, all to no avail. After over an hour, he gave up. He woke the blonde up and handed her $1000 and asked 'Well, so what is the answer?'
Again, without a word, the blonde reached into her purse, handed the lawyer $5, and went back to sleep.
Find number abc
If cb5ac + 733ab = 85a83 find number abc. Multiple solutions may exist.
Vladimir PrelogBorn 23 Jul 1906; died 7 Jan 1998 at age 91.Yugoslavian-Swiss chemist who shared the 1975 Nobel Prize for Chemistry with John W. Cornforth for his work on the stereochemistry of organic molecules and reactions. Stereochemistry is the study of the three-dimensional arrangements of atoms within molecules. He authored systematic naming rules for molecules and their mirror-image version, that is, which configuration will be referred to as “dextra” and which will be the “levo” (right or left). Also, by X-ray diffraction, he elucidated the structure of several antibiotics. |
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 4278
NUMBERMANIA: Calculate the number 4278 using numbers [1, 2, 4, 9, 70, 730] 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, 8, 17, 19, 26, 27, 36, 50, 65, 66, 75, 91) 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 c6c8c + 9063a = a37aab 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 473
NUMBERMANIA: Calculate the number 473 using numbers [2, 3, 1, 1, 10, 326] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
