John was piloting a plane behind a car but was never able to overtake it. Why?

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 ?

Prove that the below maths equation is true.

8 + 8 = 91

If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?

Why did the Girl throw the butter out of the window?

Can you find out which options fits best with the missing column?

What is the end of everything?

How is the moon similar to a dollar?

Solve this riddle by finding the odd one out from the rest.

Replace the question mark with the correct number.

2 + 2= 4
3 + 3= 18
4 + 4= 48
5 + 5= ?