Answer:
I am tomorrow's yesterday and yesterday's tomorrow. What am I?
I'm at the head of an elephant and at the tail of a squirrel
The more you take away the bigger I get. What am I?
I regularly change shape yet remain a sphere. I am always there but not often seen. What am I?
I am a caribbean shape that makes ships disappear
I break away from my pack. I create holes in my victims. I can travel for miles and then disappear. I am part of a dying breed. What am I?