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?

Which is the smallest number that you can write using all the vowels exactly once?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

What two things can you never eat for breakfast?

Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=

Place a mathematical symbol between the numerals 5 and 9 in such a way that the resulting number is greater than 5 but smaller than 9.

I was born in a small house and I live in it all alone. No windows and no doors have been assigned to my house. The only way I can go out is by breaking through the walls of my house.

Who am I?

Can you identify if it's a murder or a suicide ?

What is the largest number you can write with just 3 digits?

A pack of cards has 40 cards. You are blindfolded. Out of 40, 25 cards are facing down while 15 are facing up. You have been asked to divide this pack of cards into two decks - so that each deck contains an equal number of face-up cards. Remember, you are blindfolded.

How will you do it?