They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

Find the mistake in the below maths equations

A = 2
A(A-1) = 2(A-1)
A2-A = 2A-2
A2-2A = A-2
A(A-2) = A-2
A = 1

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

Once while in his court, King Akbar asked Birbal to write something on a wall that makes one sad when read in good times and makes one happy when read in sad times.

He took only a few moment and wrote something that fit the requirements. What did he write?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

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?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?

Which is the correct shadow of the bird?