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. I am given with pleasure when taken by force.
I keep things green and keep kids happy during summer time.
score in end zones.
I plow and plow, but never sow. What am I?
What has a thumb and four fingers but is not alive?
No matter how little or how much you use me, you change me every month.