
If a notebook costs 100 yen, 20 yen cheaper than a pencil case, then how much is an eraser?
I’ve never been all that good with numbers, but word problems in particular were pretty troublesome for me. I mean, if a train leaves from Detroit at 9:45 going 80 miles per hour in a south-by-south-westerly direction and another train leaves from Nashville 570 miles away at 10:03 going 87 miles per hour, what are the chances that they will suddenly implode so I don’t have to solve for x?
At least that problem does (apparently) have an answer, but we’ve found one math problem that’s completely stumped the internet:
https://twitter.com/__zero____/status/671528177991192576“Baffling…”
The first problem reads:
“A notebook is 100 yen, 20 yen cheaper than a pencil case. How much is an eraser?”
Japanese netizens were just as perplexed as we were, commenting:
“What madness is this?”
“There is no answer (grin)”
“Who is the genius who thought this up?”
“Market value!!( ಠωಠ)”
“This is… philosophy!”
“For a second I thought, ‘What? Too easy lol.’ I kinda wanna kill myself.”
But how about that second problem? Maybe it’s a little easier? Let’s see:
“A sandwich is 98 yen, 10 yen cheaper than an anpan (red bean bun). How much is the anpan?”
At first glance, this one seems to be a lot easier to solve, until you notice the difference in spelling between あんぱん, anpan written in all hiragana, and あんパン anpan, written half in hiragana and half in katakana, which then begs the question: “Is there a difference between あんぱん and あんパン?”
Do be sure to let us know if you have the answers!
Source: Twitter/ @__zero____ via Hamusuta Sokuhou
Top image: Twitter/ @__zero____

Supposedly simple math homework for Japanese elementary kid stumps gamer dad, with good reason
Unique inclined elevator in Japan leads to a town that inspired Studio Ghibli’s Spirited Away
Real takoyaki is almost impossible to find in Tokyo, but this place has it, our hardliner says
Step into Japanese culture with Converse’s new Japan-exclusive shoes featuring gods, sushi style
Tokyo hotel lets you make your stay a Sanrio one with special My Melody and Kuromi rooms【Pics】
The deluxe disappointment and basic brilliance of Japan’s oldest standing soba noodle chain
Starbucks Japan unveils new Christmas goods, drinkware and candles for the 2025 holiday season
All-you-can-eat Häagen Dazs among 200 other frozen foods at Osaka’s Chin! Suru Restaurant【Pics】
Japanese military called in to deal with increasing bear attacks in rural prefectures
Japanese Black Wagyu from Yoshinoya – Premium beef isn’t just for politicians anymore!【Taste test】
7-Eleven opens “next generation” SIP convenience store in Japan
Sanrio and Sonic the Hedgehog characters become fast friends with new plushie collection
Totoro fountain figurine recreates the sights and sounds of one of anime’s most memorable scenes
Top Japanese baby names for 2025 feature flowers, colors, and a first-time-ever favorite for girls
Starbucks Japan releases new Christmas drink that can be topped with whipped cream
Studio Ghibli releases new Howl’s Moving Castle perpetual calendar
Beautiful Totoro bento box mixes classic and modern symbols of Japan
New Kyoto experience package lets you film epic samurai battles with your friends
Japan’s mini VHS anime home video replicas are the newest blast of capsule toy nostalgia【Pics】
Kagawa’s Udon Gummies are so hard to chew they come with warning labels
Human washing machine pods coming to Japanese hotels【Photos】
Studio Ghibli releases new “komorebi” plush toys to brighten your days
JR Hokkaido train driver in trouble for reading book about trains on stopped train
Studio Ghibli releases new anime tea and mugs in Japan
Japanese hotel chain’s new service: A bed and pajamas for otaku travelers’ plushies
Tokyo bento boxed lunch shop charges different prices depending on how heavy your laptop is
Studio Ghibli anime stoles are here to keep you warm with a range of famous characters
Japan has vending machines that put protective film on your phone for you — Here’s how to use them
Starbucks Japan unveils new Christmas Frappuccino and holiday drinks for 2025
Survey asks foreign tourists what bothered them in Japan, more than half gave same answer
Possessing Harry Potter’s Sword of Godric Gryffindor is now illegal in Japan
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
One of Japan’s most beautiful hot spring towns announces new limits on number of day trippers
Leave a Reply