Answer:
What has a big mouth, yet never speaks?
A kind of weather that comes your way, but add a "D" and it will run away
My first is nothing but a name; my second is more small; my whole is of so little fame it has no name at all.
I have one, you have one. If you remove the first letter, a bit remains. If you remove the second, bit still remains. If you remove the third, it still remains.
The more of it there is, the less you see.
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?