Answer:
I let water fall on you while everyone else stays dry.
Two in a whole and four in a pair. Six in a trio you see. Eight's a quartet but what you must get is the name that fits just one of me.
2 in a corner 1 in a room 0 in a house but 1 in a shelter.
I carry you down a gentle stream.
I am a portal to another world which you cannot enter. Only you can see me but I can't see you.
Give it food and it will live, give it water and it will die.
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic