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.'

Three playing cards in a row. Can you name them with these clues? There is a two to the right of a king. A diamond will be found to the left of a spade. An ace is to the left of a heart. A heart is to the left of a spade. Now, identify all three cards.

It is a six-letter word.
The first four letters are me.
The second and last letters are the same.
The fourth second and last letter is payment.

Who is it?

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

I am lying and I always lie. Tell me whether I am lying or telling the truth.

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

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

Can it be possible to build a house that has all its four walls facing towards the South?

What question can you never answer yes to?

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

Do you know what I am?