Replace the question mark with the correct number.

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

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 ?

Six glasses are in a row. The first three are filled with milk and the last three are empty. By moving only one glass, can you arrange them so that the full and the empty glasses alternate?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

What does this below rebus puzzle mean?

Get total of 120 by using five zeros 0,0,0,0,0 and any one mathematical operator.
Do you ?

I can sizzle like bacon,
I am made with an egg,
I have plenty of backbone, but lack a good leg,
I peel layers like onions, but still remain whole,
I can be long, like a flagpole, yet fit in a hole.

Manish has to secure 40% marks to pass his B.tech final exams.
He got just 40 marks and failed by 40-marks.

What is the maximum marks?