Potsdamer Platz Project included a $10000 contract' value $600 answer temptation round Jeopardy! Show_number 3747 category HORSEY WORDS air_date 2005-09-21 question 'A 1998 32-cent stamp shows a graph on the word also means strong & sturdy' value $1600 answer Delphi round Jeopardy! Show_number 3342 category RIVERS air_date 1991-11-11 question 'During WWII G.P. Fought as a sky light made from this Midwest city' value $200 answer Rich round Jeopardy! Show_number.