Daily Brain Teasers for Sunday, 24 January 2021
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find number abc
If 1bbcb + 471a4 = b373c find number abc. Multiple solutions may exist. The first user who solved this task is Nílton Corrêa de Sousa.
#brainteasers #math
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. The first user who solved this task is Nasrin 24 T.
#brainteasers #mastermind
Calculate the number 537
NUMBERMANIA: Calculate the number 537 using numbers [4, 7, 1, 6, 60, 472] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. The first user who solved this task is Nasrin 24 T.
#brainteasers #math #numbermania
Big People Words
A group of kindergartners were trying to become accustomed to the first grade. The biggest hurdle they faced was that the teacher insisted on no baby talk.
"You need to use 'big people' words," she'd always remind them. She asked Chris what he had done over the weekend. "I went to visit my Nana."
"No, you went to visit your GRANDMOTHER. Use big people words!" She then asked Mitchell what he had done. "I took a ride on a choo-choo."
She said, "No, you took a ride on a TRAIN. Use big people words." She then asked Bobby what he had done. "I read a book," he replied.
"That's WONDERFUL!" the teacher said. "What book did you read?" Bobby thought about it, then puffed out his little chest with great pride and said, "Winnie the Shit."
MAGIC SQUARE: Calculate A*B-C
The aim is to place the some numbers from the list (15, 16, 17, 24, 25, 26, 27, 28, 29, 53) 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. The first user who solved this task is Nasrin 24 T.
#brainteasers #math #magicsquare
Camera obscuraIn 1544, a solar eclipse was viewed at Louvain, which was later depicted in the first published book illustration of the camera obscura in use. Dutch mathematician and astronomer Reinerus Gemma-Frisius viewed a solar eclipse using a hole in one wall of a pavillion to project the sun's image upside down onto the opposite wall. He published the first illustrationof a camera obscura, depicting his method of observation of the eclipse in De Radio Astronomica et Geometrica (1545). Several astronomers made use of such a device in the early part of the 16th century. Both Johannes Kepler and Christopher Scheiner used a camera obscura to study the activity of sunspots. The technique was known to Aristotle (Problems, ca 330 BC). |
Find number abc
If 44a8b - 3c1c8 = 8b31 find number abc. Multiple solutions may exist. The first user who solved this task is Nílton Corrêa de Sousa.
#brainteasers #math
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. The first user who solved this task is Nasrin 24 T.
#brainteasers #mastermind
Calculate the number 1933
NUMBERMANIA: Calculate the number 1933 using numbers [9, 4, 7, 5, 69, 509] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. The first user who solved this task is Nasrin 24 T.
#brainteasers #math #numbermania
Find number abc
If b53c5 - b4bac = bb85 find number abc. Multiple solutions may exist. The first user who solved this task is Nasrin 24 T.
#brainteasers #math
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. The first user who solved this task is Nasrin 24 T.
#brainteasers #mastermind
Calculate the number 3046
NUMBERMANIA: Calculate the number 3046 using numbers [2, 8, 1, 2, 48, 986] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. The first user who solved this task is Nasrin 24 T.
#brainteasers #math #numbermania
