SchwarzschildRadiusid
Answered

Clad in mail, never clinking.
Dies on dry land.
Thinks a fountain is a puff of air.
Never thirsty, ever drinking.
What am I?

Sagot :

Apologiabiologyid
a fish
from the hobbit
told by smegol
mail=scales
dies on dry land becuase needs oxygen in water
lives in water  so likes water like a puff of air
drinks water thought gills
Eahid
[tex]ANSWER \rightarrow A \ fish[/tex]

This is the full riddle: 
Alive without breath,
As cold as death, 
Drowns on dry land, 
Thinks an island is a mountain, 
+ the 4 of your question...