Riddles Random Riddle: Lily November 12, 2021July 25, 2021 gags Lily is a lily pad in a small pond. Lilly doubles her size each day, On the 20th day she covers the whole pond. On what day was Lily half the size of the pond? Show answer Day 19, it’s not 10 because on day 20 she doubled from day 19, so 19 must be half the size of the pond.