Answer:
My first is a heir; My second's a snare; my whole is the offspring of fancy; which I sent out of play upon Valentine's day As a token of love to my Nancy.
I hatch without food
Open me, and you can't see me without a mirror. Close me and you can't see me at all. What am I?
I'm not alive but I grow I don't have lungs but I need air I don't have a mouth but water can kill me. What am I?
I hop around and deliver eggs at Easter.
What made Cyclops quit teaching?