In Japan, it is tradition for husbands to get a monthly allowance from their wives.
6
In Japan, more adult diapers are sold than baby diapers.
50
In Japan, watermelons are grown into the shape of a square so they are easier to stack and transport.
108
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, slurping loudly while eating noodles shows that the food is delicious. It's actually considered rude not to slurp!
26