Answer:
I am useless when together but useful when I am broken apart. What am I?
I have an eye but cannot see. I take time to generate and can dissipate in seconds. What am I?
I am a tale in childrens' minds. Though an illusion, I occur every night. I give them a fantasy, I give them a fright. What am I?
I'm light as a feather yet the strongest person can't hold me for more than a few minutes. What am I?
I cannot be burned in fire or drowned in water. What am I?
you hold my tail while I fish for you