Answer:
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.
I speak without a mouth and hear without ears. I have no body but I come alive with wind. What am I?
I fly yet I have no wings. I cry yet I have no eyes. Darkness follows me. Lower light I never see.
I am a protector. I sit on a bridge. One person can see right through me, while others wonder what I hide. What am I?
I begin and have no end. Eventually I will be the end of all that has begun.
Runs over fields and woods all day. Under the bed at night sits not alone, With long tongue hanging out, Resting at your feet until we go for a walk