Easy riddles

I have just one, but with eight to spare, I am usually friendly, but I sometimes act like I don't care. What am I?

There is bomb on top of a computer; around the computer are a hairbrush, keys, phone and a cup. When the explosion comes, what item destroyed first?

Physicists have built devices to move me very fast. My last seven letters can be commonly found in newspapers, magazines and journals. What am I?

When can you add two to eleven and get one as the correct answer?

I know a country. If you remove the last aplhabet of its name, it will become a part of your body. Do you?

We can be boring, Or interesting. We can be long, Or short. We can have pictures, Or just words. Many love us, But many also hate us. What are we?

What was the biggest island in the world before the discovery of Australia by Captain Cook?

If an electric train is going east at 60 miles an hour and there is a strong westerly wind, which way does the smoke from the train drift?

I travel all over the world. But I could not move, just stay in a same single spot. What Am I?

My life can be measured in hours. I serve by being devoured. Thin, I am quick. Fat, I am slow. Wind is my foe.