What number should come in place of the question mark below?

Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

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 ?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

What part of the chicken has the most feathers?

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?

What does the below rebus riddle means?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

What is the below Rebus indicate?

There was a minor accident with a doctor's son but the doctor noticed no major injury. After the treatment, the father of that doctors son is sitting with the son of the doctor without the doctor being in the room.

How can this be possible?