If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

Decode the below four famous ciphers:

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

People are waiting in line to board a 100-seat aeroplane. Steve is the first person in the line. He gets on the plane but suddenly can't remember what his seat number is, so he picks a seat at random. After that, each person who gets on the plane sits in their assigned seat if it's available, otherwise, they will choose an open seat at random to sit in. The flight is full and you are last in line. What is the probability that you get to sit in your assigned seat?

The more of this there is, the less you see. What is it?

I have branches, but no fruit, trunk or leaves. What am I?

I shave every day, but my beard stays the same. What am I?

What word begins and ends with an E, but has only one letter?

Paul's height is six feet, he's an assistant at a butcher's shop and wears size 9 shoes. What does he weigh?

Can you start the fire using two pieces of wood?

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT