Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

What has 13 hearts but no other organs?

You can hear me, but you can't touch or see me.

What am I?

There are two beautiful yet remote islands in the South Pacific. The Islanders born on one island always tell the truth, and the Islanders from the other island always lie.
You are on one of the islands and meet three Islanders. You ask the first which island they are from in the most appropriate Polynesian tongue, and he indicates that the other two Islanders are from the same island. You ask the second Islander the same question, and he also indicates that the other two Islanders are from the same island.
Can you guess what the third Islander will answer to the same question?

A person was killed at a house party. When the police arrive, there are six people present in the house who are the friends of the victim. The name of the friends is Rohit, Aman, Nick, Gagan, and Randy.

Near the dead body, they find a few numbers written with blood by the victim on the floor. The numbers are 8, 5, 4, and 11.

The police arrests one of the friends for the murder. Whom did they arrest and why?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

What is common among 11, 69, and 88?

On one occasion, A Boy collects 71 rupees in form of 20 paise and 25 paise. He collects a total of 324 coins.

Can you tell me how many 20-paisa and 25-paisa he got?