Answer:
It rows quickly with four oars but never comes out from under its own roof. What is it?
What is it that after you take away the whole some still remains?
I'm blue at day and black at night. I do contain some creatures born and died. What am I?
I start with āeā end with āeā. I have whole countries inside me. What am I?
You can see it everyday, but cannot touch it at will. What is it?
A man goes out in heavy rain with nothing to protect him from it. His hair doesn't get wet. How does he do that?