Can it be possible to build a house that has all its four walls facing towards the South?

Move four matchsticks to the below square to form three squares?

A man was going to bleach his socks because they had gotten muddy the day before. As he was pouring the bleach into the washing machine, he spilt some on the floor. He got some cleaning fluid and mopped it up with a rag. Minutes later he was dead. What killed him?

How old is your son? asked a man to his neighbour. My son is five times as old as my daughter and my wife is five times as old as my son. I am twice as old as my wife whereas my grandmother, who is celebrating her eighty-first birthday is as old as all of us put together.

How old is the man's son ?

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

O_er_t_o_

Complete the missing letters of the given word.

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

I am a word of 12 alphabets.

* Alphabets 12, 4, 7, 2, 5 : Eastern beast of burden
* Alphabets 1, 8, 10, 9 are street made famous by Sinclair Lewis.
* Alphabets 11, 3, 6 are past.

On whole it means a person suffering from delusions of greatness.

What Is it ?