With science human beings are trying to answer the questions poping up in their heads. They are trying to break through their ignorance. As the time goes by, human have succesfully answered many questions and break many myths that they hold before, even prove their thruths. Because of science, human civilizations have leaped out quite far before the use of scientific method. Regardless of the answered-questions human did, there are still so many things that human could not be cracked yet. This book elaborates 20 big questions in science, that still not answered yet (in progress). The questions icnludes many field of science, such as: physics, biology, neuroscience & psychology, medical study, chemistry, math and computation, and population study. This book provides some expert's explanations and the progress which scientist had made so far. If you have interest in science, this is a book you should read, because it will introduce you to what human have achieved so far with science and the unanswered-things. I got so many insight from this book, and it help me to analyze the fake news which people use to get benefit. Science is a tools for human, to prove whether something is true or not.