Good Riddles

Question: Filled with garb,
the price is free.
Just return what you don't need.

What am I?

Question: There was three elephants who were about to leave the home. They only had one umbrella. They all try to fit under that on umbrella. When the elephants reach their destination, none of them are the slight least wet. How could this be possible?

Question: What has a tongue but can not talk. Gets around, but can not walk.

Question: I give advice to others,
yet I know nothing myself.
I am a hitchhiker destined to stay still.

Question: You are in a car with some helium balloons and hit the gas. While you accelerate, which way does the balloon move?