Answer:
I start with an E end with an E and have a letter in me.
I cannot be burned in fire or drowned in water. What am I?
I'm blue at day and black at night. I do contain some creatures born and died. What am I?
What can go up a chimney down but can’t go down a chimney up?
If you drop me I'm sure to crack but give me a smile and I'll always smile back. What am I?
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.