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 always drive my customer away.

Who am I?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

In the image below, you can see two glasses and two matchsticks.You need to move four matchsticks in such a manner that the crosses come inside the glasses. Note: you cannot move the crossed.

Can you solve below mathematical equation?

2^1234 - 2^1233

In a mathematical quiz, you are asked the following question:

Use three 9s in a mathematical expression without dividing or multiplying to form the number one.

Can you answer the question?

Find the next number in the sequence

1, 2, 6, 21, 88, __?

What Time Should the last watch show in the below figure?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

Spot what is wrong here in below Picture?