Answer:
Cloud is my mother, wind is my father. What am I?
I am a bow that can never be tied or broken but can disappear. What am I?
You will always find me in the past. I can be created in the present, but the future can never taint me. What am I?
What has legs but doesn't walk?
I have an eye but cannot see. I take time to generate and can dissipate in seconds. What am I?
What language does a billboard speak?