Answer:
I help engines spin and pants stay up
What invention lets you look right through a wall?
I am essential to life on earth! I am split into thirds. Two thirds are the same. One of the thirds is 8. The other two are 1 each.
I am a mini solar powered computer
I look at you, you look at me. I raise my right, you raise your left. What am I?
It flows out of the soil, It burns you if it boils, And holds us in its coils, More valuable than gold, As black as it is old.