Answer:
What has feet on the inside but not on the outside?
People in love are often bound to this.
What has hands but canβt clap?
It comes only before, it comes only after. Rises only in darkness, but rises only in light. It is always the same, but is yet always different.
Without this, H2O would just be 2O
What never gets any wetter no matter how hard it rains?