I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

Look at the picture and find out which square is not linked with any of the other squares.

There was an aeroplane crash, every single person died, but two people survived. How is this possible?

In The 1st month of this year(the year 2013), I noticed that the date 13-1-13 (13 January 2013) is special.

This date is special as:

Date * Month = Year.

Can you figure out which year of this century has a maximum number of such dates?

A boy purchased a book from a bookkeeper and gave him $100.
The cost of the book is $50 but the bookkeeper has no change, so he gets the change from the next shop and returns the boy his $50.

After some time the next shopkeeper came with the $100 note and told the bookkeeper that the note was a fraud, so he took the money back.

How much loss did the bookkeeper face?

What is the next number in this matchsticks series riddle?

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

You can hear me, but you can't touch or see me.

What am I?

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'