Daily Brain Teasers for Monday, 30 May 2022
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Calculate the number 1395
NUMBERMANIA: Calculate the number 1395 using numbers [6, 3, 6, 9, 81, 720] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If b4b39 - 3a267 = c6272 find number abc. Multiple solutions may exist.
#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.
#brainteasers #mastermind

There were five people aboard...
There were five people aboard an airplane having engine trouble getting ready to crash, however, there were only four parachutes. Everyone wondered what should be done to determine who should get the parachutes. One person said that he was the smartest thing that hit the face of the Earth, and that he was too smart to die. So, he took one of the parachutes and jumped out of the aircraft. The second person said that she was too important to die, she had children and a family to take care of, and they depended on her to care for them. So, she took one of the parachutes and jumped out of the aircraft. The third person said that he was too important to die because his family depended on him for survival. He was the head of household and the sole bread winner. So, he took one of the parachutes and jumped out of the aircraft. Finally, there were only two people left, and one parachute. One person was a 12 year old boy, and the other was a 65 year old man. The old man said, "Well son, I have lived a good life, and you are too young to die, you have a long life ahead of you. So, you take the last parachute. The boy asked, "Why, Sir?" The old man said, "Well, there is only one parachute left." The little lad said, "Sir there are really two parachutes left." The old gentlemen asked, excitedly, "Yeah? How?" "Well," replied the boy, "you know that guy who thought he was the smartest and greatest thing that hit the face of the Earth? He grabbed my backpack."
Calculate the number 4493
NUMBERMANIA: Calculate the number 4493 using numbers [6, 7, 7, 8, 69, 665] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Edison patentIn 1893, a patent for a "Roller for Crushing Ore or Other Material" was issued to Thomas A. Edison (U.S. No. 498,385). Edison had in mind crushing iron ore. "It is usual in ore crushing machines employing rollers to mount them in pairs on suitable supporting frames and to provide means for driving each pair, and for feeding material to be crushed separately to each pair of rollers and to provide separate means for pressing the rollers of each pair together. In the machine to be described I employ three or more rollers supported side by side in a frame and moveable towards or away from each other, instead of using them in pairs, and a single weight and lever serves to press all of said rollers together."Image: drawing of the side elevation of the apparatus. |
MAGIC SQUARE: Calculate A+B*C
The aim is to place the some numbers from the list (3, 5, 6, 7, 9, 10, 11, 27, 28, 29, 69, 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
Find number abc
If c66cb + bb16a = 103ba6 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 683
NUMBERMANIA: Calculate the number 683 using numbers [8, 3, 3, 2, 75, 322] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If 71b20 - caaac = 11b2c 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