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.'

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

I’m tall when I’m young, and I’m short when I’m old. What am I?

A four-digit number (not beginning with 0) can be represented by ABCD. There is one number such that ABCD=A^B*C^D, where A^B means A raised to the B power. Can you find it?

It has five wheels, though often think four, You cannot use it without that one more, You can put things in it, you can strap things on top, You can't find it in the market, but you can still go shop. What is it?

In the picture given below, can you find out which digit will take place of the question mark?

In the image below, you can see two glasses and two matchsticks.You need to move four matchsticks in such a manner that the crosses come inside the glasses. Note: you cannot move the crossed.

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

A Child was born in Lahore, Pakistan. Still, the child is not a Pakistani citizen. why?