Daily Brain Teasers for Friday, 10 March 2023
|
puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Calculate the number 2964
NUMBERMANIA: Calculate the number 2964 using numbers [3, 4, 9, 3, 27, 912] 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 (4, 6, 7, 10, 18, 20, 21, 22, 24, 25, 65) 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 a6b1b + 6cc91 = 146aca find number abc. Multiple solutions may exist.
Great News
The day after a man lost his wife in a scuba diving accident, he was greeted by two grim-faced policemen at his door.
"We’re sorry to call on you at this hour, Mr. Wilkens, but we have some information about your wife."
"Well, tell me!" the man said.
The policeman said: "We have some bad news, some good news and some really great news. Which do you want to hear first?"
Fearing the worst, Mr. Wilkens said: "Give me the bad news first."
So the policeman said: "I’m sorry to tell you sir, but this morning we found your wife’s body in San Francisco Bay."
"Oh my god!," said Mr. Wilkens, overcome by emotion. Then, remembering what the policeman had said, he asked: "What’s the good news?"
"Well," said the policeman, "When we pulled her up she had two five-pound lobsters and a dozen good size Dungeness crab on her."
"If that’s the good news, then what’s the great news?" Mr. Wilkens demanded.
The policeman said: "We’re going to pull her up again tomorrow morning."
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.
John TorreyDied 10 Mar 1873 at age 76 (born 15 Aug 1796).American botanist and chemist known for his extensive studies of North American flora. The first professional botanist in the New World, Torrey published extensively on the North American flora, advocated the "natural system" of classification that was replacing Linnaeus' artifical system, and collaborated for many years with his student Asa Gray (who was to become an important botanist). Torrey never was able to make a living from botany and worked (among other things) as a freelance chemical analyst. Unidentified plants collected on government expeditions to the western states were sent to him for study, however, as a foremost authority of his time. A genus of evergreen trees, Torreya, is named for him. |
Calculate the number 4448
NUMBERMANIA: Calculate the number 4448 using numbers [4, 1, 6, 1, 33, 858] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Find number abc
If 6ba8c + a99cc = c0bb9b 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 489
NUMBERMANIA: Calculate the number 489 using numbers [1, 1, 3, 3, 54, 544] 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, 11, 25, 26, 29, 51, 52, 55) 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 a4a6b - 2146a = c3293 find number abc. Multiple solutions may exist.
