Daily Brain Teasers for Wednesday, 24 April 2024
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find number abc
If 101a2 + 6cbcc = 7c7a1 find number abc. Multiple solutions may exist.
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.
Calculate the number 372
NUMBERMANIA: Calculate the number 372 using numbers [1, 4, 7, 4, 37, 121] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Hair Spray
A little boy and his grandfather are raking leaves in the yard. The little boy finds an earthworm trying to get back into its hole. He says, "Grandpa, I bet I can put that worm back in that hole." The grandfather replies, "I'll bet you five dollars you can't. It's too wiggly and limp to put back in that little hole."
The little boy runs into the house and comes back out with a can of hairspray. He sprays the worm until it is straight and stiff as a board. Then he puts the worm back into the hole.
The grandfather hands the little boy five dollars, grabs the hairspray, and runs into the house. Thirty minutes later the grandfather comes back out and hands the little boy another five dollars. The little boy says,
"Grandpa, you already gave me five dollars."
The grandfather replies, "I know. That's from your grandma
Find number abc
If 4c787 + 39438 = 8cbba find number abc. Multiple solutions may exist.
IBM-PCIn 1981, the first IBM personal computer was introduced. |
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.
Calculate the number 760
NUMBERMANIA: Calculate the number 760 using numbers [5, 5, 8, 2, 19, 127] 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 (3, 4, 7, 12, 13, 15, 16, 42, 43, 46) 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 52aca - 212ba = c15cb 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 1991
NUMBERMANIA: Calculate the number 1991 using numbers [4, 6, 6, 6, 74, 713] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
