Best riddles with simple answers

What kind of dog never bites?

The more you have of it, the less you see. What is it?

This is as light as a feather, yet no man can hold it for long. What am I?

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. I am a...

What always comes into a house through the keyhole?

How do you spell a pretty girl with only two letters?

What goes in dry and hard, but comes out wet and soft?

I am a white box having no key or any lid. Yet there is a golden treasure inside it. What Am I ?

There is something which arrested for attempting but not for completing. What is it?

What do you call an asian vegatable?