It's always cool to learn new things, though we rarely waste our time answering ”why" questions. Why are chili peppers hot? Why do we collect money in “piggy” banks? Why is pizza round but the box is square? Why are most erasers pink? Humanity has been asking this question since the beginning. Our brain starts working before birth and its development never stops. In order to keep the brain function normal and healthy for our entire life, we need to feed new knowledge to our grey matter. So here are the most interesting answers to the questions about everything at once.

Learn more about your ad choices. Visit megaphone.fm/adchoices