Answer:
A trail, a union, together tied. Come across me and you will find you cannot change the course I'm on. Without me you cannot travel on. What am I?
I move without wings between silken strings. I leave as you find my substance behind
You do not want me when you don’t have me but when you have me you don't want to lose me.
I was was before was was was.
A sport with love and service played by singles and pairs.
Keep doing me to avoid lens dryness
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic