Answer:
What is as light as a feather, but not even the strongest man on earth can't hold it for more than 1 c)minute?
Long and thin, red within, with a nail at the end.
I occur twice in eternity. And I'm always within sight.
Often wandering the streets, this group of people cannot afford to be choosers.
What is filled with air and sometimes a gas, tied to a string and often seen on your birthday?
A doctor might remove one from the neck of a Dracula victim.