Daily Brain Teasers for Friday, 06 January 2023
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Calculate the number 4154
NUMBERMANIA: Calculate the number 4154 using numbers [3, 2, 6, 2, 45, 814] 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 (10, 11, 13, 14, 18, 21, 69, 70, 73, 74, 77, 91) 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
Find number abc
If c9cac - 4c937 = 13c6b find number abc. Multiple solutions may exist.
#brainteasers #math
Dracula friends
Why is no one friends with Dracula?
Because he's a pain in the neck.
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.
#brainteasers #mastermind
Foucault's pendulum resultIn 1851, the rotation of the Earth was proved experimentally by Leon Foucault. After weeks of work, he recorded in his journal that he made this discovery at 2:00 am working with a pendulum in the cellar of the house he shared with his mother. Using a steel wire 2-m long with a 5-kg brass bob, he had made a pendulum suspended in a way that freely permitted it, he found that its plane of oscillation slowly rotated relative to the ground. This led to using much longer versions of his pendulum. He found that the angular velocity of the rotation equalled wsinq where w is the angular velocity of the Earth rotating on its axis, and q is the latitude of the site of the pendulum. He demonstrated his discovery on 31 Mar 1851 for Napoleon.« |
Calculate the number 9737
NUMBERMANIA: Calculate the number 9737 using numbers [9, 6, 4, 7, 79, 671] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If 80a33 - 77bb1 = aaca find number abc. Multiple solutions may exist.
#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.
#brainteasers #mastermind
Calculate the number 2758
NUMBERMANIA: Calculate the number 2758 using numbers [4, 8, 8, 8, 73, 726] 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 (4, 6, 7, 16, 26, 28, 29, 40, 47, 49, 50) 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
Find number abc
If 61a8b - cc0ab = 17ab0 find number abc. Multiple solutions may exist.
#brainteasers #math
