Answer:
What language does a billboard speak?
I am an object which is used in baseball. During the day I can't be seen at all. What am I?
Flat as a leaf, round as a ring; have two eyes, can't see a thing. What am I?
What goes up but never comes down?
I am a mother from a family of eight. I spin around all day despite my weight. Had a ninth sibling before founding out it was fake. What am I?
What flies without wings?