Answer:
I transfer oxygen from the atmosphere to your blood
You use me between your head and your toes the more I work the thinner I grow.
What gets whiter the dirtier it gets?
Although it sounds like I work on a transportation device I actually work in a restaurant.
The Titanic is still here.
Before I grow I'm small. When I'm old I grow tall. When I die I give a mighty fall.
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic