What country can make you shiver?

Take one out and scratch my head, I am now black but once was red. What am I?

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?

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

Who is that with a neck and no head, two arms and no hands? What is it?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

Jenifer is learning to drive her car. She went down a one way lane and in the wrong direction. But she do not break any law.

How come ?

Can you find out which number multiplied by itself will give the output as 12345678987654321?

A deaf and mute man goes to the train station. Tickets for the train are 50 cents each. The man goes to the ticket booth and hands the man inside just a dollar. The man in the booth hands him two tickets.

How did the man in the booth know to give him two tickets without even looking at him?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?