Answer:
I go up and down at the same time. Up towards to sky and down towards the ground
I am the word that has three syllables and twenty six letters. What am I?
I have a brother. However much we run we do not reach each other.
What can you catch but never throw?
A hundred arms, a thousand fingers, but I have no eyes to see where I linger. What am I?
I am your mother's brother's only brother in law. Who am I?