Answer:
Many hear me, but no one sees me, and I only speak when spoken to
Never alive but practically extinct. How we miss the letters pressing the ribbon of ink. What is it?
What can be measured but not seen?
What is seen in the middle of March and April that can’t be seen at the beginning or end of either month?
I have a face, yet no senses. But I don't really care, because time is of the essence.
What language does a billboard speak?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?