If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

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?

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

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

What two things can you never eat for breakfast?

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

I have eight fingers and two thumbs but I do not live. What Am I?

A patient was diagnosed with some ailment. He was given five different tablets to take at night at an interval of 15 minutes.

How long will it take the patient to consume all the five tablets?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?