What Am I Riddles

Question: I'm one. but I can overcome ten with one swing and a spin . What am I?

Question: What can you put in your mouth, but not swallow?

Question: Without one or the other both would not exist. what i'm I ?

Question: I'm the son of water, but when I return to water, I die. Who am I?

Question: I give light by night, but not by day, Am wicked but not evil in any way, Wax for the most but always wane, Except when I'm out, I stay the same. What am I?