Pretty much everyone enjoys being able to help their younger siblings or kids with their elementary school homework. It’s a little piece of joy to pass on what you’ve learned and prove how cool of a mom/dad or big brother/sister you are. You impart some simple knowledge and see the little light bulb turn on in their head as they begin to understand. Then you can sit back and watch with confidence as they interact with the world around them.
But what do you do when the homework is a question that even you can’t answer? This brainteaser had everyone in one Japanese family stumped for over an hour, so they turned to Twitter for help. And then much of the Internet was stumped too. Take a look at these riddles and see how many you can get playing: What Prefecture is This?





Japan may add Japanese language proficiency, lifestyle classes to permanent foreign resident requirements
Lacquerware supplier to emperor of Japan and Pokémon team up for new tableware
7-Eleven Japan starts new temporary luggage storage service in over 300 branches
Japan’s best-amenity budget hotel chain gets extra-affordable with “Global Cabin” rooms
“2.5D Mask” lets you spend the day as an anime character, frighten pets and small children
Japan has cornered the market on weird but cute – a look back into history【Photos】
Once you hear this lady sing “Yooooooghurppe”, you may never stop hearing it
More people in Japan quit sending New Year’s cards and many have started to regret it
Dragon Quest Burgers and Slime drinks are coming to McDonald’s Japan【Video】
Starbucks Japan releases new zodiac chilled cup drink for 2026
Starbucks teams up with 166-year-old Kyoto doll maker for Year of the Horse decorations【Photos】
Disillusionment at Tsukiji’s tourist-target prices led us to a great ramen restaurant in Tokyo
Tokyo’s Tsukiji sushi neighborhood asks tour groups to stay away for the rest of the month
Street Fighter Hadouken Churros to be launched and eaten in Tokyo, Okami pudding on offer too
Is this the most relaxing Starbucks in Japan?
Starbucks on a Shinkansen bullet train platform: 6 tips for using the automated store in Japan
Large amount of supposed human organs left in Osaka marketplace
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Japanese train company is letting fans buy its actual ticket gates for their homes
Tokyo considering law requiring more trash cans following litter increase in heavily touristed area
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Nintendo’s Kirby now delivering orders at Kura Sushi restaurants, but not in Japan
Tokyo event lets you travel back in time, for free, to celebrate 100 years since Showa era start
Survey asks foreign tourists what bothered them in Japan, more than half gave same answer
Japan’s deadliest food claims more victims, but why do people keep eating it for New Year’s?
We deeply regret going into this tunnel on our walk in the mountains of Japan
Studio Ghibli releases Kodama forest spirits from Princess Mononoke to light up your home
Major Japanese hotel chain says reservations via overseas booking sites may not be valid
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
The top 10 annoying foreign tourist behaviors on trains, as chosen by Japanese people【Survey】
No more using real katana for tourism activities, Japan’s National Police Agency says
Starbucks Japan reveals new sakura drinkware collection, inspired by evening cherry blossoms
Japan has cornered the market on weird but cute – a look back into history【Photos】
Once you hear this lady sing “Yooooooghurppe”, you may never stop hearing it
More people in Japan quit sending New Year’s cards and many have started to regret it
Dragon Quest Burgers and Slime drinks are coming to McDonald’s Japan【Video】
Starbucks Japan releases new zodiac chilled cup drink for 2026
Style your hair like an old-school Japanese beauty with the marumage hair kit【Video】
Edible 10-yen coins become a hot new trend in Tokyo【Taste test】
More Than a Capsule Stay: Why Solo Travelers Choose “global cabin Yokohama Chinatown”
Five more Japanese words we’d love to import into English
How to respond to Japanese people saying “I don’t speak English” when you’re speaking Japanese?
Daiso creates its own collectible trading card game, and yes, the packs are just 100 yen【Video】
Let’s find the Japanese full-face visor best suited for your grandmother or handmaiden
Disillusionment at Tsukiji’s tourist-target prices led us to a great ramen restaurant in Tokyo
Hungry and on the go? Top 10 ranking of ekiben at Tokyo’s Shinagawa Station