What do you answer even though it never asks you questions?

What goes up but never comes down?

There are two words one resembles the "state of rest" and the other is related to "writing/reading material".

Can you name these two words which also sound similar?

I am the black child of a white father, a wingless bird, flying even to the clouds of heaven. I give birth to tears of mourning in pupils that meet me, even though there is no cause for grief, and at once on my birth, I am dissolved into air. What am I?

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

Which five letter word can be added at the end of below word to form a
valid word?

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People put me on the table and cut me but do not eat me. What am I?

Can you name some countries which do not have the alphabet 'A' in them?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?