What does this Rebus Picture 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?

What does below chemistry rebus means?

How do you go from 98 to 720 using just one letter?

Can you find out the remainder when 3^300 is divided by 5?

How many times do a clock's hands overlap in a day ?

All of Jacob's shoes are red except two.
All of Jacob's shoes are green except two.
All of Jacob's shoes are yellow except two.

How many shoes does Jacob have?

How many Watermelons are there in the below picture?

I start and end with 500 and carry a 5 in my heart. But I require the first letter and the first number to be complete. I am the name of a King.

Who am I ?

What's the best place to go shopping in the ocean?