I have branches, but no fruit, trunk or leaves. What am I?

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.'

Replace the question mark with the number below given a simple math problem.

Find the next number in the series.
1 10 24 43 67 ?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

If 24H in a D => 24 hours in a day.
What does "64S on CB" stand for?

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

What runs around the whole yard without moving?

Suppose that you are trapped on the surface of a frozen lake. The surface is so smooth and ideal that there is no friction at all. You cant make any grip on the ice and no wind is blowing to help you out. You have just a mobile phone with you which has got no reception disabling you to call for help.

How will you plan your escape before you freeze to death on the frozen lake?

On rolling two dices (six-sided normal dice) together, what is the probability that the first one comes up with a 2 and the second one comes up with a 5?