Before Mount Everest was discovered, what was the highest mountain in the world?

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 know a 5-digit number having a property that With a 1 after it, it is three times as large as it would be with a one before it.

Guess the number?

When it is alive we sing, when it is dead we clap our hands. What is it?

Solve below rebus puzzle?

Identify the movie name through below Rebus containing Pi Mouse and coconut tree..

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

What kind of band never plays music?

A quarter is one-fourth of a dollar but Mr. John has changed the equation as below :

DOLLAR * 4 = QUARTER

Can you replace each letter with a digit to make the above solution correct?

Lifeless eyes on my smiling face and watch your child's sleeping place. In their dreams they hold me tight. What am I?