Daily Brain Teasers for Friday, 23 April 2021
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Calculate the number 6709
NUMBERMANIA: Calculate the number 6709 using numbers [2, 4, 5, 7, 61, 898] 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, 11, 12, 19, 22, 23, 42, 45, 46, 54, 57) 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 b94c4 + c66a4 = 46068 find number abc. Multiple solutions may exist. 
Mixed Messages Watch the Spell Check or Auto Check
Hi, Fred, this is Alan next door.
I have a confession to make. I have been riddled with guilt these past few months and have been trying to get up the courage to tell you face-to-face, but I am at least telling you in a text as I cannot live with myself a moment longer without you knowing. The truth is I have been sharing your wife, day and night when you’re not around. In fact, probably more than you. I haven’t been getting it at home recently, but I know that’s no excuse. The temptation was just too great. I can no longer live with the guilt and hope that you will accept my sincerest apology and forgive me. It won’t happen again. Please suggest a fee for usage and I’ll pay you.
Regards, Alan.
NEIGHBOR’S RESPONSE*
Fred, feeling so angered and betrayed, then grabbed his gun and shot his neighbour Alan dead. He returned home, poured himself a stiff drink, and sat down on the sofa. Fred took out his phone where he saw a second message from Alan.
SECOND MESSAGE*
Hi, Fred, this is Alan next door, again.
Sorry about the typo on my last text. I expect that you figured it out and noticed that darned Auto-Correct changed “wi-fi” to “wife.” That’s today’s technology for you, hey?
Regards, Alan
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. Top quarkIn 1994, physicists at the Department of Energy's Fermi National Accelerator Laboratory discovered the subatomic particle called the top quark. |
Calculate the number 4851
NUMBERMANIA: Calculate the number 4851 using numbers [5, 2, 5, 7, 79, 430] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
If aac11 + 50bc4 = 7b195 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 2164
NUMBERMANIA: Calculate the number 2164 using numbers [2, 3, 6, 2, 25, 704] 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 (7, 8, 10, 11, 14, 17, 18, 73, 74, 80, 89) 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 a1c1b - a0910 = b0b find number abc. Multiple solutions may exist. 
