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?
You use me from your head to your toes. The more I work, the thinner I grow. What am I?
I direct you from outer space.
I am all around, yet to me you are half blind. Sunlight makes me invisible and difficult to find. What am I?
I am in the past never in the future. I don't exist but have existed. I saw what you saw and that is what I will ever see.
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic