It's only visible when it's cold. It gets harder when it's higher. Its presence is often unnoticed, but you'll always notice you absence. What is it? Share Tweet Answer Breath.
In a stable there are men and horses. In all, there are 22 heads and 72 feet. How many men and how many horses are in the stable?
In a stable there are men and horses. In all, there are 22 heads and 72 feet. How many men and how many horses are in the stable?