Decode the below four famous ciphers:

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

A man is found dead with a knife in his back When the investigation is done. A chair lays beside him and the forensic team finds moisture around the body.

If he committed suicide, how did he do it?

With pointed fangs I sit and wait; with piercing force I crunch out fate; grabbing victims, proclaiming might; physically joining with a single bite. What am I?

Which letter of the alphabet has the most water?

Forwards I am heavy, backward I am not. What am I?

Complete the table series riddle by finding the number that can replace "??".

What has a ring but no finger?

You see me once in June, twice in November, and not at all in May. What am I?

A boy purchased a book from a bookkeeper and gave him $100.
The cost of the book is $50 but the bookkeeper has no change, so he gets the change from the next shop and returns the boy his $50.

After some time the next shopkeeper came with the $100 note and told the bookkeeper that the note was a fraud, so he took the money back.

How much loss did the bookkeeper face?

What does this mathematical rebus means ?