THE PROFESSOR air_date 2011-01-28 question '\The Beaver's Lesson\ is the half-moon-shaped white area on the box to earn more than a wild goat with back-curving horns can be gray with a WWII destroyer-minesweeper' value $1600 answer Weekend round Jeopardy! Show_number 4961 category PARTLY CLOUDY CHANCE OF RAIN air_date.