Answer:
Though easy to spot, when allowed to plume, It is hard to see, when held in a room.
Break it and it is better, immediately set and harder to break again.
What binds two people yet touches only one?
When the day after tomorrow is yesterday, today will be as far from Wednesday as today was from Wednesday when the day before yesterday was tomorrow. What is the day after this day?
What has a single eye but cannot see?
What covers its face with its hands, speaks no language, yet most known what it's saying?