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 are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

What is the next shape from answers A, B, C, and D figure?

A lion and its tamer are standing inside a cage that measures 1 unit in radius. Both of them can effortlessly run at the speed of 1 unit maximum.

1) Suppose the lion is hungry, will he be able to eat up the tamer?
2) If yes, how long can the tamer survive?

What has 88 keys?

What word is pronounced the same if you take away four of its five letters?

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

What is it?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

Can you make the below equation true by using any three numbers from "1, 3, 5, 7, 9, 11, 13 and 15"?

( ) + ( ) + ( ) = 30

I’m orange, I wear a green hat and I sound like a parrot. What am I?