Answer:
I am just two and two. I am hot. I am cold. I am the parent of numbers that cannot be told. I am a gift beyond measure, a matter of course. What am I?
I'm not really more than holes tied to more holes; I'm strong as good steel, though not as stiff as a pole.
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 go around a yard but do not move. What am I?
I have memories but none of my own whatever's on my inside is what is shown. If I'm ever different it's because you changed me I feel like a decoration here for you to arrange me.
They're actually great swimmers now, but later they will become excellent hoppers.