Paradox Blue

"What is the boundary between game and reality". The world is in danger. Strange juggernauts called "Angels" have started to appear all around the planet, presenting riddles called "Angel Paradox" to whoever happens to be in the near vicinity. Answer right and your land will receive God's blessing. However, fail to solve the paradox and the whole place will be literally nuked with divine punishment... An interactive manga with multiple choices, similar to the "Choose your own adventure" books.