Malbim (2-3): Through Divine Chachmah, he was able to answer her riddles, and revealed her heart's intent via her external words. E.g. in Shimshon's riddle, the external was a riddle; the internal was that the Az is a lion, and sweet is honey, and he intended for the episode with the lion. Shlomo understood the heart's intent connected with the words through his Divine Chachmah; nothing was hidden from him.