Answer:
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.
The stack just might be sent all over. Full of what's new, yet it's nearly obsolete.
You heard me before, yet you hear me again, then I die. Until you call me again.
A caribbean shape that makes ships disappear
Just head and foot yet never tires of dancing.
I have two eyes in the front and a lot of eyes on my tail
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?