Could Should Would

Riddle: Could is should, should is would and would is wood, of course so what starts with an apple must end with a horse. Do you know what famous historical event this predicted?

Answer: Ne riddle, and I don't know the answer. Source: https://riddles.com/3322

Could is should, should is would and would is wood, of course so what starts with an apple must end with a horse. Do you know what famous historical event this predicted? — could should would by David Rutledge Riddle