Medium simple riddles for kids with simple answers

I have no legs. I will never walk, but always run. What am I?

Four children and their pet dog were walking under a small umbrella. But none of them became wet. How?

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"?

Which vehicle is spelled the same forwards and backwards?

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

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