Answer:
If you drop me I'm sure to crack but give me a smile and I'll always smile back. What am I?
I'm blue at day and black at night. I do contain some creatures born and died. What am I?
I am a cold man without a soul. If there is warmth in me, it slowly will kill me. What am I?
I have keys but no locks. I have space but no room. You can enter but can't go outside. What am I?
I soar without wings I see without eyes. I've traveled the universe to and fro. I've conquered the world yet I've never been anywhere but home.
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.