Answer:
A leathery snake, with a stinging bite. I'll stay coiled up, unless I must fight.
What is it that makes tears without sorrow and takes its journey to heaven?
When the day after tomorrow is yesterday, today will be as far from Wednesday as today was from Wednesday when the day before yesterday was tomorrow. What is the day after this day?
Two in a whole and four in a pair. And six in a trio you see. And eight's a quartet but what you must get. Is the name that fits just one of me?
What is never used unless it's in a tight place?
You can always see it, but it's too far away to touch. Mountains rest on it, and at sea it surrounds you. What is it?