Decode the below four famous ciphers:

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

If 2 workers can complete painting 2 walls in exactly 2 hours.

How many workers would be needed to paint 18 walls in 6 hours?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

What number divided by 4 is the same as that number minus 4?

Three friends decide to distribute the soda cans they had among them. When all of them had drunk four cans each, the total number of cans that remained was equal to the cans each one of them had after they had divided the cans.

Can you calculate the total number of cans before distribution?

A person was found dead on a big green land with no trees or buildings around. When the police arrived, they found a piece of rock lying next to him and the man was wearing clothes comprising of red, blue and yellow colours.

Can you tell who the person is and what was the cause of death?

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

I am 5 letters long.
My first two tell you who I am
My first 3 could be a medicine
My last three reversed could be a young boy.
My 4th, 3rd and 2nd in that order could be a fruit drink.
If you have me you may hang me round your neck
WHAT AM I ?

Can you find out which options fits best with the missing column?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?