Guess the number of the 49th class reunion?

Multiplied by four nines, it is 8 1. The crossword puzzle about numbers includes 72 hours of guessing words (three days, that is, three days, crystals). 15 days, guessing words (half a month, so the combination is fat) 140 days, guessing words (20 weeks, 20 combinations are king, so it is _).

365 days to guess words (1February,1February combination is green). 5 18.4 guess a word. (18: 4, 18 is wood, and 4: 4 is four points, which is the boundary word).