Daily Brain Teasers for Wednesday, 17 February 2021
|
puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find number abc
If 71c8c - ab82a = bab8 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 3798
NUMBERMANIA: Calculate the number 3798 using numbers [7, 6, 4, 2, 92, 655] 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 490ac + a408b = bbcb44 find number abc. Multiple solutions may exist. The first user who solved this task is Nasrin 24 T.
#brainteasers #math
Johann Tobias MayerBorn 17 Feb 1723; died 20 Feb 1762 at age 39.German astronomer who developed lunar tables that greatly assisted navigators in determining longitude at sea. Mayer also discovered the libration (or apparent wobbling) of the Moon. Mayer began calculating lunar and solar tables in 1753 and in 1755 he sent them to the British government. These tables were good enough to determine longitude at sea with an accuracy of half a degree. Mayer's method of determining longitude by lunar distances and a formula for correcting errors in longitude due to atmospheric refraction were published in 1770 after his death. The Board of Longitude sent Mayer's widow a payment of 3000 pounds as an award for the tables. |
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 Fazil Hashim.
#brainteasers #mastermind
Calculate the number 8904
NUMBERMANIA: Calculate the number 8904 using numbers [8, 1, 7, 5, 83, 944] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. The first user who solved this task is Nílton Corrêa de Sousa.
#brainteasers #math #numbermania
MAGIC SQUARE: Calculate A-B-C
The aim is to place the some numbers from the list (1, 2, 6, 7, 8, 9, 16, 17, 26, 28, 36) 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
Find number abc
If 97cb9 - 2a9c7 = 7abb2 find number abc. Multiple solutions may exist. The first user who solved this task is Nasrin 24 T.
#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 5648
NUMBERMANIA: Calculate the number 5648 using numbers [9, 1, 3, 9, 68, 498] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. The first user who solved this task is Nílton Corrêa de Sousa.
#brainteasers #math #numbermania
