The 1 yen coin can be used as a weight, because it weighs exactly one gram. Also, it can float on water.
19
The Japanese, on average, are the shortest people.
320
In Japan, it is tradition for husbands to get a monthly allowance from their wives.
6
Japan has the most vending machines in the world (5.52 million) which is more than the population of New Zealand.
7
Japan's capital Tokyo means "Eastern Capital".
1