Answer:
you can throw me away but I will always be coming back
Sometimes I annoy you, sometimes you can't live without me. But no matter how hard you try, you can't destroy me. What am I?
I'm as simple as a circle worthless as a leader; but when I follow a group their strength increases tenfold. By myself I'm practically nothing.
I'm at the head of an elephant and at the tail of a squirrel
I am a word of letters three. Add two and fewer there will be. What word am I?
It flows out of the soil, It burns you if it boils, And holds us in its coils, More valuable than gold, As black as it is old.