Daily Brain Teasers for Wednesday, 05 February 2025
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find number abc
If ca0ba + 22655 = b3c46 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 776
NUMBERMANIA: Calculate the number 776 using numbers [6, 1, 9, 2, 93, 131] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Odd Rabbi Out
These four rabbis had a series of theological arguments, and three were always in accord against the fourth.
One day, the odd rabbi out, after the usual "3 to 1, majority rules" statement that signified that he had lost again, decided to appeal to a higher authority.
"Oh, God!" he cried.
"I know in my heart that I am right and they are wrong!
Please give me a sign to prove it to them!"
It was a beautiful, sunny day.
As soon as the rabbi finished his prayer, a storm cloud moved across the sky above the four.
It rumbled once and dissolved.
"A sign from God! See, I'm right, I knew it!"
But the other three disagreed, pointing out that storm clouds form on hot days.
So the rabbi prayed again: "Oh, God, I need a bigger sign to show that I am right and they are wrong. So please, God, a bigger sign!"
This time four storm clouds appeared, rushed toward each other to form one big cloud, and a bolt of lightning slammed into a tree on a nearby hill.
"I told you I was right!" cried the rabbi, but his friends insisted that nothing had happened that could not be explained by natural causes.
The rabbi was getting ready to ask for a VERY big sign, but just as he said, "Oh God...,"
the sky turned pitch black, the earth shook, and a deep, booming voice intoned, "HEEEEEEEE'S RIIIIIIIGHT!"
The rabbi put his hands on his hips, turned to the other three, and said, "Well?"
"So," shrugged one of the other rabbis, "now it's 3 to 2."
Find number abc
If cba33 - bc3ac = c0ba find number abc. Multiple solutions may exist.
John JeffriesBorn 5 Feb 1744; died 16 Sep 1819 at age 75.American physician and scientist who financed two balloon flights for himself and a Frenchman, Jean Pierre Blanchard, with experience in balloon flight. Jeffries wished to make scientific and meteorological observations. The first flight took place in London on 30 Nov 1784. Jeffries had provided himself with thermometer, barometer, electrometer, hygrometer and timepiece. He took air samples at different elevations for Cavendish, who subsequently made a chemical analysis of the air. The twelve observations of temperature, pressure, and humidity that Jeffries made were the first scientific data for free air, to a height of 9,309 feet. The values agree closely with modern determinations. On 7 Jan 1785, they made the first balloon crossing of the English Channel.Image: Jeffries posed as if in balloon, holding barometer. |
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 345
NUMBERMANIA: Calculate the number 345 using numbers [9, 4, 3, 4, 18, 406] 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 (1, 3, 6, 8, 10, 15, 19, 21, 25, 28, 54) 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 b5075 + 224ca = a0753c 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 5278
NUMBERMANIA: Calculate the number 5278 using numbers [5, 8, 8, 6, 84, 675] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
