Was Jesus Christ the Messiah Just Kidding About Real Noah’s Flood & the Reality of First Couple Adam Plus Eve in Garden?

When Jesus Christ equated the prophesied future destruction of the unbelievers worldwide to the judgment of the unbelievers by Noah’s Flood, was He really just joshing about the latter and thereby too about the former? Over six hundred ancient tribal legends speak of the global flood (learned from the eight ancestors on the Ark), so why would it be crazy for Jesus to have agreed? Sin and thereby death came into the world by Adam and Eve’s fall in the Garden of Eden says the Word, so why would Jesus have been motivated to hide the supposed fact that humans evolved from monkeys considering that He came to remedy the curse brought onto Adam and Eve and thereby too their progeny?