Which country gets ill every time?

I welcome the day with a show of light, I stealthily came here in the night. I bathe the earthy stuff at dawn, But by noon, alas! I'm gone.

Move three sticks of the spiral below to form a square.

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

If you say my name, I will no longer exist. What am I?

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

You walk into a creepy house by yourself. There is no electricity, plumbing, or ventilation. Inside you notice 3 doors with numbers on them. Once you open the doors you will die a particular way. Door No.1 You’ll be eaten by a lion who is hungry. Door No.2 You’ll be stabbed to death. Door No.3 There is an electric chair waiting for you. Which door do you pick?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

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?

I am written with two letters.
I said with the one.
I usually am seen with the two.

Who am I?