Daily Brain Teasers for Wednesday, 16 February 2022
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find number abc
If 99cb5 + a5ca9 = caa32a 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 6339
NUMBERMANIA: Calculate the number 6339 using numbers [9, 7, 3, 7, 27, 919] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
How To Save Money!
Three engineers and three accountants are traveling by train to a conference. At the station, the three accountants each buy tickets and watch as the three engineers buy only a single ticket.
"How are three people going to travel on only one ticket?" asks an accountant.
"Watch and you'll see," answers an engineer.
They all board the train. The accountants take their respective seats but all three engineers cram into a restroom and close the door behind them. Shortly after the train has departed, the conductor comes around collecting tickets. He knocks on the restroom door and says, "Ticket, please."
The door opens just a crack and a single arm emerges with a ticket in hand. The conductor takes it and moves on.
The accountants saw this and agreed it was quite a clever idea. So after the conference, the accountants decide to copy the engineers on the return trip and save some money (being clever with money, and all that). When they get to the station, they buy a single ticket for the return trip. To their astonishment, the engineers don't buy a ticket at all.
"How are you going to travel without a ticket?" says one perplexed accountant.
"Watch and you'll see," answers an engineer.
When they board the train the three accountants cram into a restroom and the three engineers cram into another one nearby. The train departs. Shortly afterward, one of the engineers leaves his restroom and walks over to the restroom where the accountants are hiding. He knocks on the door and says, Ticket, please."
Find number abc
If 474ca + 2b8cc = 7422b find number abc. Multiple solutions may exist.
Jean-Baptiste-Julien d' Omalius d' HalloyBorn 16 Feb 1783; died 15 Jan 1875 at age 91.Belgian geologist who was an early proponent of evolution. From his youth he pursued geological researches. He was one of the pioneers of modern geology who determined the stratigraphy of the Carboniferous and other rocks in Belgium and the Rhine provinces, and also made detailed studies of the Tertiary deposits of the Paris Basin. As noted by Charles Darwin in the preface of Origin of the Species: "In 1846 the veteran geologist ... Halloy published ... his opinion that it is more probable that new species have been produced by descent with modification than that they have been separately created: the author first promulgated this opinion in 1831." Even in his ninety-first year Halloy made a scientific expedition alone, which exertion contributed to his death. |
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 3954
NUMBERMANIA: Calculate the number 3954 using numbers [9, 8, 5, 6, 80, 971] 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 (6, 8, 15, 19, 21, 26, 28, 61, 63, 70) 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 c10bb + 1baab = a00b6 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 3398
NUMBERMANIA: Calculate the number 3398 using numbers [2, 6, 5, 7, 26, 573] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
