Daily Brain Teasers for Friday, 05 June 2026
|
puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Calculate the number 1346
NUMBERMANIA: Calculate the number 1346 using numbers [1, 3, 8, 5, 91, 479] 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 (5, 6, 11, 13, 14, 19, 29, 31, 32, 37) 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 c708b - 78aa0 = 1886b find number abc. Multiple solutions may exist.

Circle Flies
An old farmer got pulled over by a young state trooper for speeding. The trooper, fresh on the job, decided to throw his weight around and started lecturing the farmer about his speed. He did his best to make the farmer feel uncomfortable but eventually got around to writing the ticket. As he wrote, he had to swat at several flies that were buzzing around his head.
"Having some problems with circle flies there, are ya?" asked the farmer.
The trooper stopped writing the ticket and looked up. "Well yeah, if that's what they are," he said. "I never heard of circle flies, though."
"Oh, they're pretty common on farms," said the farmer. "We call 'em circle flies because they're always circling around the back end of a horse."
"I see," said the trooper as he continued writing the ticket. All of a sudden, he stopped and looked up at the farmer. "Hey...wait a minute, are you trying to call me a horse's ass?"
"Oh no, officer," replied the farmer. "I have far too much respect for law enforcement and police officers to even think about calling you a horse's ass."
"Well, that's a good thing," said the trooper as he resumed writing the ticket.
After a long pause, the farmer continued. "Hard to fool them flies, though."
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.
Edward Daniel ClarkeBorn 5 Jun 1769; died 9 Mar 1822 at age 52.English mineralogist and traveller who amassed a valuable collection of minerals. In 1799, he began a 3-year tour through Asia Minor, Italy, Greece, Scandinavia and Siberia, where he also collected maps, statues and sarcophagi, manuscripts, and Greek coins. He was the first professor of mineralogy at Cambridge University (1808). In 1817 he became librarian there, until his health failed, though he continued to lecture until 1821. He had a significant impact through his teaching of minerology in terms of crystallography and the new chemistry, and through the topological geology and volcanological observations in his widely read Travels (6 vols. 1810-23). His mineral collection was bought by Cambridge at his death for 1,500 pounds. |
Calculate the number 1421
NUMBERMANIA: Calculate the number 1421 using numbers [9, 4, 1, 2, 74, 383] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Find number abc
If baacc + 2a311 = 122baa 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 7592
NUMBERMANIA: Calculate the number 7592 using numbers [5, 8, 9, 3, 42, 881] 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 (16, 17, 22, 28, 29, 34, 45, 60, 61, 66) 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 c89a9 - 1b92c = 2104a find number abc. Multiple solutions may exist.