The 1 yen coin can be used as a weight, because it weighs exactly one gram. Also, it can float on water.
19
Most streets in Japan do not have names.
6
Japanese engineers were asked to redesign the front end of the Bullet Train because it carried enough speed to create a sonic boom whenever it exited a tunnel. Residents could feel the blast from miles away.
11
Japan is the largest exporter of frog's legs.
114
In Japan, slurping loudly while eating noodles shows that the food is delicious. It's actually considered rude not to slurp!
26
The first foreigner to become a samurai was an African slave.
26