Still doesn't make sense that 9 2 2 is the only answer. eh. Couldn't it be anything Dsharma mentioned except 6 6 1? Mero goru ko barhai takka cha baa, 9 2 2 nai answer ho re, hehe.. aru hoina re. House number 13 nai ho re, aru hoina re, I'd say 6-3-2 lau jaa, that makes more sense to me Unless someone comes up with better explanation hehe... Math teacher haru le yestai garera lutcha, chahine nachahine question sodhera. :P 6*3*2 = 36 6 is "older" than 3 and 2 The house number next door is 11 :P