Take a tip and take a look at the Japan SAQ (Seldom Asked Questions) website, which will answer all those questions about Japan that you never knew you had. Even long-term residents and many Japanese will find themselves saying, “I never knew that!”

If you’ve ever wondered why Japanese think traffic lights are blue instead of green, what they call the plastic pieces of grass in bento lunch boxes, and why the yakuza put pearls in their penises, this is the place to go.