What would I do?

I don’t know, but I probably wouldn’t be concerned with the lives of a species dead set on their own extermination…

I’d probably go somewhere else in the universe… like Dr. Manhattan

Masturbate .

First I would make the earth spin slower, preferably .. 0.1 mph, making the day longer, then I would take care of all the problems this would cause - Like .. I would make a sun on the other side of the earth not facing our real sun, so they wouldn't freeze to death. You get me? Then I would use the rest of my extra extra long day to do evil. Not literally evil though.

Let's just say there are some people who would have to spend a lot of time praying for mercy, if I were to God for a day.

Yes..If there were any other gods, I would challenge them to duels.

But if there were no others, and If I could make Gods, I would make some, then challenge them to duels. :D

Then before the day was over, I would create a bottled drink for my human self, that maximizes my intelligence, physicality and gives me immortality when I drink it.

I would leverage the resulting omniscience and omnipotence to provide mankind with a solution/workaround for the issue described by Heisenberg's Uncertainty Principle. This would be a massive boon to our ability to measure, study, and understand subatomic particles, and both by extension and in and of itself move numerous hypothetical technologies from the realm of fiction to that of possibility.

Edit: Assuming I don't go mad with power, that is. A distinct possibility, that.

If I would be a god for just on day then first of all, I will make schools, hospitals and colleges for the poor.Then I would punish those who start a war . Then I will make my environment green by planting more and more trees. This is my imagination

If I would be a god for just one day then first of all, I will make schools, hospitals and colleges for the poor.Then I would punish those who start a war . Then I will make my environment green by planting more and more trees. This is my imagination

Absolutely, I would set up a bank account of unlimited money and pursue multiple degrees after that day too. I wouldn't stop and human related problems since that is the wrong doing of humans. I'll give nice people free strawberries or something.

I'd probably do what I always do....seeing as God probably doesn't exist.

I would try to take over the world ;)