The 1 yen coin can be used as a weight, because it weighs exactly one gram. Also, it can float on water.
19
In Japan, watermelons are grown into the shape of a square so they are easier to stack and transport.
108
Most streets in Japan do not have names.
6
The Japanese, on average, are the shortest people.
320
In Japan, slurping loudly while eating noodles shows that the food is delicious. It's actually considered rude not to slurp!
26