Answer:
I'm written with two letters, said with one and seen with two. What am I?
First you see me in the grass dressed in yellow gay; next I am in dainty white, then I fly away. What am I?
I have hands but do not hold, teeth but do not bite. Feet I have but they are cold, eyes I have but without sight. What am I?
The more you work the more I'll eat.You keep me full I'll keep you neat.
From house to house I go, sometimes narrow, sometimes wide. Whether there's rain or snow, I always stay outside. What am I?
What is always coming but never arrives?