Daily Brain Teasers for Sunday, 20 August 2023
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find number abc
If 7cb6b + ab276 = 1188a1 find number abc. Multiple solutions may exist.
#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.
#brainteasers #mastermind
Calculate the number 9378
NUMBERMANIA: Calculate the number 9378 using numbers [3, 1, 3, 2, 49, 204] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
MAGIC SQUARE: Calculate A-B-C
The aim is to place the some numbers from the list (2, 7, 9, 13, 14, 19, 20, 67, 72, 78) 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.
#brainteasers #math #magicsquare
Soviet H-bombIn 1953, the Soviet Union released the news that it had detonated its first hydrogen bomb, eight days earlier (12 Aug 1953), in Kazakhstan. The Soviet devicehad their own “layer cake” design of lithium-6 deuteride and tritium fuel layered with uranium. The explosion, with a yield of 400 kilotons (about 30 times the power of the bomb dropped on Japan, 6 Aug 1945), came less than 10 months after the first U.S. bomb test, "Mike," (1 Nov 1952) announced by President Harry Truman on 7 Jan 1953. Notably, the Soviet bomb was more portable than the U.S. device—small enough to fit in a plane, and be easily weaponizeable, though its size limited the amount of thermonuclear fuel and explosive force. It was dubbed “Joe-4” in the U.S.The American test was designed for greater explosive power.« |
Find number abc
If c9cba - c9ca4 = 19 find number abc. Multiple solutions may exist.
#brainteasers #math
Calculate the number 631
NUMBERMANIA: Calculate the number 631 using numbers [1, 4, 8, 8, 83, 323] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If c0bbc + 94c58 = a2502a find number abc. Multiple solutions may exist.
#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.
#brainteasers #mastermind
Calculate the number 6416
NUMBERMANIA: Calculate the number 6416 using numbers [7, 3, 8, 3, 58, 625] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
MAGIC SQUARE: Calculate A*B-C
The aim is to place the some numbers from the list (16, 19, 23, 31, 34, 38, 48, 69, 72, 76) 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.
#brainteasers #math #magicsquare
