Daily Brain Teasers for Friday, 19 January 2024
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Calculate the number 7045
NUMBERMANIA: Calculate the number 7045 using numbers [6, 3, 4, 5, 94, 731] 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 (24, 25, 26, 27, 31, 32, 51, 72, 74, 79) 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 b8a00 - b554b = c151 find number abc. Multiple solutions may exist.
Childhood Sweethearts
An elderly couple who were childhood sweethearts had married & settled down in their old neighborhood.
To celebrate their 50th wedding anniversary they walk down to their old school. There, they hold hands as they find the desk they shared & where he had carved "I love you, Sally".
On their way back home, a bag of money falls out of an armoured car practically at their feet. She quickly picks it up, & they don't know what to do with it so they take it home. There, she counts the money, & its fifty-thousand dollars.
The husband says: "We've got to give it back".
She says, "Finders keepers" & puts the money back in the bag & hides it up in their attic.
The next day, two policemen are going from door-to-door in the neighbourhood looking for the money show up at their home.
One knocks on the door & says: "Pardon me, but did either of you find any money that fell out of an armoured car yesterday?"
She says: "No"..
The husband says: "She's lying. She hid it up in the attic."
She says: "Don't believe him, he's getting senile."
But the policemen sit the man down & begin to question him.
One says: "Tell us the story from the beginning."
The old man says: "Well, when Sally & I were walking home from school yesterday ..."
At this, the policeman looks at his partner & says: "We're outta here ..."
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.
James WattBorn 19 Jan 1736; died 19 Aug 1819 at age 83. Scottish engineer and inventor whose steam engine contributed substantially to the Industrial Revolution. In 1763 he repaired the model of Newcomen's steam engine belonging to Glasgow University, and began experiments on properties of steam. The Newcomen engine was simple in design: it acted as a pump and a jet of cold water was used to condense the steam. Watt improved on this design by adding a separate condenser and a system of valves to make the piston return to the top of the cylinder after descending. He took out a patent for the separate condenser in 1769. He later adapted the engine to rotary motion, making it suitable for a variety of industrial purposes, and invented the flywheel and the governor.[DSB and other sources give dete of death as 19 Aug 1819. EB gives 25 Aug 1819.] |
Calculate the number 2487
NUMBERMANIA: Calculate the number 2487 using numbers [7, 9, 1, 2, 82, 341] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Find number abc
If a4c2c + 64a96 = b3932b 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 1134
NUMBERMANIA: Calculate the number 1134 using numbers [6, 4, 6, 7, 67, 877] 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 (8, 9, 11, 16, 17, 18, 20, 62, 63, 65, 84) 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 92717 - 2baba = c8a7b find number abc. Multiple solutions may exist.
