Answer:
What word starts with 'E', ends with 'E', but only has one letter? It is not the letter 'E'.
What five-letter word becomes shorter when you add two more letters?
I build up castles. I tear down mountains. I make some men blind. I help others to see.
What doesn't get any wetter, no matter how much rain falls on it?
What is it something that you always have but you always leave behind?
I can only be played on a windy day