Answer:
By myself, I'm practically nothing. Worthless as a leader, but when I follow a group, their strength increases tenfold. What am I?
I cannot be burned in fire or drowned in water. What am I?
I am just two and two. I am hot. I am cold. I am the parent of numbers that cannot be told. I am a gift beyond measure a matter of course. I am given with pleasure when taken by force.
I can be cracked, made, told, and played. What am I?
I am a type of animal that hang out in the mist
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.