Best easy riddles

Take me for a spin and I'll make you cool, but use me in the winter and you're fool. What am I?

I am full of holes but I can still hold water. What am I?

A man stands on one side of a river, his dog on the other. The man calls his dog, who immediately crosses the river without getting wet and without using a bridge or a boat. How did the dog do it?

What has 4 wheels and flies?

What gets shorter when you close your arm?

An iron horse with a flaxen tail. The faster the horse runs, the shorter his tail becomes. What is it?

What can you lose that will cause other people to lose theirs too?

You are a bus driver. The bus starts out empty. At the first stop 4 people get on. At the second stop, 8 people get on and 3 get off. At the third stop, 2 people get off and 4 get on. The question is, what color are the bus driver's eyes?

I'm in your phone. Sometimes I laugh. Sometimes I cry. I even flip you off from time to time. What am I ?

If you were running a race, and you passed the person in 2nd place, what place would you be in now?