What country can make you shiver?

What does this Rebus Picture mean?

The host of a game show offers the guest a choice of three doors. Behind one is an expensive car, but behind the other two are goats.
After you have chosen one door, he reveals one of the other two doors behind which is a goat (he wouldn't reveal a car).

Now he gives you the chance to switch to the other unrevealed door or stay at your initial choice. You will then get what is behind that door.

You cannot hear the goats from behind the doors, or in any way know which door has the prize.

Should you stay, or switch, or doesn't it matter?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

Three people are in a room. Ronni looks at the Nile. The Nile looks at Senthil. Ronni is married but Senthil is not married. At any point, is a married person looking at an unmarried person? Yes, No or Cannot be determined.

I am quite hot but become too cold if you remove the first two letters. What am I?

You throw me out when you want to use me and you take me in when you don't want to use me.

Who Am I?

The below given figure comprises of a pattern through which you can determine the missing letter. Can you push your mind to find the pattern and add the missing letter?

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

Who is generally closer to the kids, mom or dad?

(it's a funny riddle)