Answer:
What has a ring but no fingers?
What can touch someone once and last them a lifetime?
They are toothy nocturnal immortals.
These are the bumpy parts of your digits
The line a runner strives to reach
A leathery snake, with a stinging bite. I'll stay coiled up, unless I must fight.
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?