Answer:
What do you have when you're sitting down that you don't have when you're standing up?
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.
Youโll have me at night and if you remove the first letter I denote the top, such as on a train
I march before armies, a thousand salute me. My fall can bring victory, but no one would shoot me. The wind is my lover, one-ยญlegged am I. Name me and see me at home in the sky.
At first, I am nothing. Add something to negate. Add again to oppose. Add again to find the time to draw. Add once more to find nobody at all.
What language does a billboard speak?