what does the below rebus means?

I am something people love or hate. I change peoples appearances and thoughts. If a person takes care of them self I will go up even higher. To some people I will fool them. To others I am a mystery. Some people might want to try and hide me but I will show. No matter how hard people try I will Never go down. What am I?

There are four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

Can you identify if it's a murder or a suicide ?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

You need to arrange three 7 and mathematical symbols to form number 1?

Here is what you have to do. You have to throw a ball as hard as you can but it must return back to you even if it does not bounce at anything. Also, you have nothing attached to the ball. There is no one on the other end to catch that ball and throw it back at you.

How will you do it?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

Solve the rebus riddle in the picture below.