Logical Riddle: What Number Do You Say So The Guard Lets You In?
Use your logical skills to solve this riddle.
A Guard is stationed at a secret club.
His new club is very exclusive so he came up with his own secretive code so members could access the building he is Guarding with no hassle.
One member walks up and the Guard says, “10”. The man responds “11” and is let through.
Another man walks up and the Guard says, “25”. The man responds “23” and is also let through.
A third man walks up and the Guard says again “27” to which the man responds “29” and it let through.
You walk up to the Guard who says “78”. What Number Do You Say So The Guard Lets You In?
If you get the correct answer, share it with your friends on WhatsApp, Facebook and other social networking sites.
The answer to the Guards number would be the prime number closest to the number given by him.
So the prime numbers closest to the numbers given by the guard are;
for 10 its 11;
for 25 its 23;
for 27 its 29
So to get access to the club when the guard gives the number 78 your answer should be the prime number closest to 78 which is 79.
Answer: 79