Answer:
I make everyone blind. You can't see me but I will always come back for you. What am I?
I can run but not walk. Wherever I go thought follows close behind.
A necessity to some a treasure to many I'm best enjoyed among pleasant company. Some like me hot some like me cold. Some prefer mild some like me bold.
My days are numbered. What am I?
To you, rude would I never be, though I flag my tongue for all to see. What am I?