Answer:
I am a mother from a family of eight. Spins around all day despite my weight. Had a ninth sibling before founding out it's fake.
I am always running but I never get tired or hot. What am I?
I hide but my head is outside. What am I?
Crooked as a rainbow and slick as a plate, ten thousand horses can't pull me straight. What am I?
I reach for the sky, but clutch to the ground. Sometimes I leave, but I am always around. What am I?
I start with T end with T and within me is T.