Answer:
Long and thin, red within, with a nail at the end.
I occur twice in eternity. And I'm always within sight.
Can describe a distress signal or flashy accessories.
What never asks questions but receives a lot of answers?
What is filled with air and sometimes a gas, tied to a string and often seen on your birthday?
I touch the Earth, I touch the sky, but if I touch you, you’ll likely die. What am I?