Answer:
I begin your sentences.
I am all around you, but you cannot see me. I have no throat, but you can hear me. Valued during summer but despised in the winter. What am I?
I go in dry and come out wet. The longer I stay in, the stronger my surroundings get. What am I?
What has a head and a tail but no body?
What is so delicate that saying its name breaks it?
What made Cyclops quit teaching?