Daily Brain Teasers for Sunday, 21 March 2021
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find number abc
If aaa22 + 2bca6 = ca168 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 337
NUMBERMANIA: Calculate the number 337 using numbers [6, 5, 7, 5, 12, 367] 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 (18, 19, 20, 23, 24, 25, 56, 61, 62, 63, 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. Round-the-world balloon flightIn 1999, a balloon achieved the first non-stop round-the-world balloon flight. After 20 days of flight, the experimental Breitling Orbiter 3 balloon, flown by Brian Jones and Bertrand Piccard, touched down in the Egyptian desert. Bertrand is the grandson of the balloon flight pioneer, Auguste Piccard. |
Find number abc
If bbb53 + 3b323 = c27c7a 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 1838
NUMBERMANIA: Calculate the number 1838 using numbers [4, 6, 5, 2, 68, 223] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
If 5a7c0 - 16bc0 = a6c00 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 3038
NUMBERMANIA: Calculate the number 3038 using numbers [2, 3, 9, 8, 74, 624] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. 
