Why Aeroplane windows are round?

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

Identify Me

Hint1: I am a god
Hint 2: I am a planet
Hint 3: measurer of heat

Decode this picture on T-Shirt and tell what it says ?

When I asked a girl's name she told me her name is the date '07/09/2001'.

I thought for a few seconds and then I got her name. Do you?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

As a whole I am both
safe and secure.

Behead me and I become
a place of meeting.

Behead me again and I am
the partner of ready.

Restore me, and I become
the domain of beasts.

What am I?

Can you place six X (crosses) in below board without making three in a row in any way ?

Find The Odd One Out

1. FLOW
2. SNIP
3. TRAP
4. DRAW
5. BACK

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?