What is always in front of you but can’t be seen?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

What has 88 keys?

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

What is it?

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

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?

What will you call your mother's brother's brother-in-law?

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