CHALLENGES 27-29 QUESTIONS AND ANSWERS: <b>CHALLENGE 27:</b> what's the song title? Individual components of liquid precipitation are relentlessly descending upon this individual's cranium <b>CHALLENGE 27 ANSWERS:</b> Raindrops Keep Falling On My Head <b>CHALLENGE 28:</b> what's the song title? The moment within the continuum of time in which you relate a personal desire to the center of a group of planets <b>CHALLENGE 28 ANSWER:</b> "When you wish upon a Star" from Pinocchio <b>CHALLENGE 29:</b> what's the song title? Coincident with the passage of the ratio of distance to velocity <b>CHALLENGE 29 ANSWER:</b> "As Time Goes By" from Casablanca.