Short simple riddles for kids

I am small. I can be scary. I have eight legs. I spin a web. What am I?

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

Everyone has it and no one can lose it, what is it?

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

There was a railroad crossing without any cars and trucks! Can you spell that without using any "R"?

You can hold it without seeing or touching it! What is that?

What can be as big as an elephant but weigh nothing?

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

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

I live in the ocean. I move slowly. I eat clams. I have five arms. I am a...