Answer:
I am lighter than air, but a hundred people cannot lift me. Careful, I am fragile. What am I?
Without me everyone would lose their head. What am I?
Without a bridle or a saddle across a thing I ride a-straddle. And those I ride by help of me though almost blind are made to see.
I am an object which is used in baseball during the day I can't be seen at all
You can always find me in the past. I am created in the present, but the future can not change me. What am I?
What language does a billboard speak?