Short easy logic riddles

Which vehicle is spelled the same forwards and backwards?

I am a nut with a whole. What am I?

Two baseball teams played a game. One team won but no man touched base. How could that be?

I have four legs. I am a pet. I hate cats. I bark.

What has four legs, but can't walk?

You can see me in water, but I never get wet. What am I?

What always comes into a house through the keyhole?

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?

What happens when you throw a blue rock into the yellow sea?

What was the biggest island in the world before the discovery of Greenland by viking Erik the Red?