Answer:
I'm tall when I'm young and short when I'm old. What am I?
I am an instrument you can hear but cannot touch or see. What am I?
Break me and I am better, immediately set and harder to be broken again. What am I?
The 8 of us go forth and back to protect our king from a foes attack
2 in a corner 1 in a room 0 in a house but 1 in a shelter.
I am your mother's brother's only brother in law. Who am I?