Answer:
No matter how much rain gets on me, I won't get any wetter. What am I?
I cause involuntary movements in your vehicle
The shorter I am, the bigger I am. What am I?
I am black within and red without; with four corners round about. What am I?
First you see me in the grass dressed in yellow gay; next I am in dainty white, then I fly away. What am I?
I flow from the Homerβs mouth when he sees doughnuts.