What common phrase is represented by the below lines

Easy going:
Weak, 'I'm going.'
Tough, 'I'm staying.'

Medium going:
Weak, 'I'm going.'
Tough, 'I'm staying.'

Tough going:
Weak, 'I can't do it, I'm staying!'
Tough, 'Let's get going.'

It spends most of its day eating white, but when it’s quick enough, it gets to eat fruit and sometimes some blue things. It’s in a dark room, where the walls are blue, it runs from a ghost that roams the halls and haunts it all the time. What is it?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

What is black when you buy it, red when you use it, and gray when you throw it away?

What Deficiency does the below rebus represent?

VIT_MIN

My location can be determined by the below rebus.
So where am i ?

Complete the table series riddle by finding the number that can replace "??".

It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

While handling a project, the landscaper is asked by the owner of the mansion that he wants four trees in front of his mansion that are exactly equidistant from each other.

How will he do it?