Answer:
I am so delicate that even mentioning me breaks me. What am I?
We are little airy creatures all of different voice and features one of us in glass is set. One of us you'll find in jet. Another you may see in tin. And the fourth a box within. If the fifth you should pursue it can never fly from you.
I can fall off a building and live, but in water I will die. What am I?
I am pronounced as one letter, written with three. I come in blue, black, brown, or grey. Reverse me and I read the same either way. What am I?
What gets broken without being held?
The answer I give is yes, but what I mean is no. What was the question?