Answer:
I begin with the letter āiā, if you add āaā in front of me, I become a new word with a different meaning, but still sounds exactly the same. What word am I?
If you lose me you may cause people around you to lose me too.
I row quickly with four oars but never comes out from under my own roof.
What is that you will break even when you name it?
I am the only thing that always tells the truth. I show off everything that I see. I come in all shapes and sizes. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.