Answer:
I belong to everyone. Sometimes make you happy, sometimes make you sad. I will never end until the day you do. What am I?
I am expelled from you orally with a sound
Long and thin red within with a nail at the end.
I am a key that is playful. What am I?
Iām grown from darkness but shine with a pale light. Very round I am and always a lady's delight.
Keep doing me to avoid lens dryness