Answer:
What you become during a workout?
Deep, deep, do they go. Spreading out as they go. Never needing any air. They are sometimes as fine as hair
Without what would everyone lose their head?
They are two brothers. However much they run, they do not reach each other.
Which is the oldest tree?
Cycle Cycle Cycle.
Easy
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?