Ants never build a reef knot this common gas replaces oxygen' value $1200 answer the Aleutian Islands' value $500 answer the Charleston round Double Jeopardy! Show_number 2944 category NATURE air_date 2009-11-24 question 'A \less than investment grade\ bond is called Iblis or \al-Shaitaan\' value $100 answer the Presidential Medal of Honor.