Answer:
Canine children.
I am pronounced as one letter written with three. I come in blue black brown or grey. Reverse me and I read the same either way.
In spring, I am gay in handsome array. In summer, more clothing I wear. When colder it grows, I fling off my clothes. In winter, quite naked appear. What am I?
I am a king who's good at measuring stuff. What am I?
I'm not really more than holes tied to more holes; I'm strong as good steel, though not as stiff as a pole.
If I say "everything I tell you is a lie", am I telling you the truth or a lie?