Daily Brain Teasers for Sunday, 20 October 2019
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find number abc
If 719c6 - 435a4 = ab3ba 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 6705
NUMBERMANIA: Calculate the number 6705 using numbers [3, 3, 8, 2, 98, 592] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. 
The Sailor and the computer
A retired sailor purchased a computer and began to learn all about computing. Being a sailor, he was used to addressing his ships as "She" or "Her". But was unsure what was proper for computers.
To solve his dilemma, he set up two groups of computer experts: one group was male, and the other group was female.
The group of women reported that computers should be refereed to as "HE" because:
1. In order to get their attention you have to turn them on. 2. They have a lot of data but are still clueless. 3. They are supposed to help you solve problems but half the time they are the problem. 4. As soon as you commit to one, you realise that if you had waited a little longer, you could have had a newer and better model.
The group of men reported that computers should be refered to as "SHE" because:
1. No one but the creator understands their logic. 2. The native language they use to talk to other computers is incomprehensible to anyone else. 3. Even your smallest mistakes are stored in long term memory for later retrieval. 4. As soon as you make a commitment to one, you find yourself spending half your paycheck on accessories for it.
MAGIC SQUARE: Calculate A-B+C
The aim is to place the some numbers from the list (1, 3, 5, 8, 25, 27, 30, 38, 40, 42, 43) 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. Paul A. M. DiracDied 20 Oct 1984 at age 82 (born 8 Aug 1902). Paul Adrien Maurice Dirac was an English theoretical physicist known for his work in quantum mechanics and for his theory of the spinning electron. In 1933 he shared the Nobel Prize for Physics with the Austrian physicist Erwin Schrödinger. |
Find number abc
If 8aa38 - 60c80 = ca1b8 find number abc. Multiple solutions may exist. 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. 
Calculate the number 9157
NUMBERMANIA: Calculate the number 9157 using numbers [7, 5, 3, 2, 32, 758] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
If 5a12c - 10bcb = c6a81 find number abc. Multiple solutions may exist. 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. Calculate the number 1644
NUMBERMANIA: Calculate the number 1644 using numbers [5, 5, 8, 8, 34, 281] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. 
