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.'

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

Eight of us go fourth, not back, to protect our king from an attack. What are we?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

Two prisoners Jack and Jill are locked in a cell.
There is open window approx 40 feet above the ground of the cell.
They are never able to reach there.

Then they plan to escape by a tunnel and they start digging out.
After digging for more than 20 days, Jill comes with the different plan and they escaped.

what was the plan ?

You are in a land where thirty men and two women were dressed in classic black and white dresses.
They begin to fight as soon as any of them move.

Where are you?

I travel all around the world but always stay in the corner. What am I?

What question can you never answer yes to?

I am a word that begins with the letter “i.” If you add the letter “a” to me, I become a new word with a different meaning, but that sounds exactly the same. What word am I?