I travel all around the world but always stay in the corner. What am I?

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

What work can one never finish?

A clock loses 10 minutes each hour. If the clock is set correctly at noon, what time is it when it reads 3 PM?

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

A man dies of old age on his 25 birthday. How is this possible?

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?

How can one talk without saying a single word?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

It is a six-letter word.
The first four letters are me.
The second and last letters are the same.
The fourth second and last letter is payment.

Who is it?