Replace the letters of words with a number so that the below equation holds true

BASE +
BALL
---------
GAMES
----------

What is the Surname of Barbie Doll?

What breaks yet never falls, and what falls yet never breaks?

I am an eight letter word and I am a computer terminology.
The second, third and fourth letters make an animal.
The fourth, fifth, sixth, seventh and eighth letters make a weapon.
The first, second, third and fourth letters can be taken as an outcome of any exam.
The fifth, sixth, seventh and eighth letter combine to form a high end typing software.

Can you tell who am I ?

Can you find a five letter word that is left with only two letters if one is removed?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

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 is 3/7 chicken, 2/3 cat and 2/4 goat?

You measure my life in hours
I serve you by expiring
I vanish faster when I am thin
and slower when I am thick
The wind is my energy
What am I?

Eight of us go fourth, not back, to protect our king from an attack. What are we?