Answer:
What happens once in June twice in August and never in May?
I am the reaction after enjoying soda.
What is light as a feather but even the strongest man cannot hold it for more than a few minutes?
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. What am I?
I have roots nobody sees. I am taller than trees. Up, up I go but I never grow. What am I?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?