What can you see in the middle of March and April that you can never see in any other month?

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

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.'

The more it dries, the wetter it becomes. Can you tell what it is?

A king sentenced a man to the death sentence for some crime he had committed. Known for his kindness, the king told the culprit that he had a choice to die in a way he decides.

The culprit was clever and said something that saved him from death. What method do you think he must have chosen for his death?

John gave half of the apples he had plus one more to Jacob. He gave half of the remaining ones plus one more to James. Now, John was left with just one apple.

Can you find out how many did he have in the beginning?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

If,
29 - 1 = 30
9 - 1 = 10
14 - 1 = 15

Based on similar logic, Can you prove that the below algebraic equation is true?
11 - 1 = 10 ?

Which fur should we be getting from the Lion?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?