[For Seniors] Great for killing time! A fun three-choice trivia quiz

daikon radish

Daikon contains an enzyme called diastase that breaks down proteins. This enzyme breaks down the proteins in soy sauce and helps lighten stains.

Type A

Forty percent of Japanese people have type A blood, making it the most common. It is said that type O follows at 30%, type B at 20%, and type AB at 10%.

used tea leaves

Just put the used tea leaves into a heat-resistant container and microwave them, and it will remove unpleasant odors from inside the microwave. The catechins in tea leaves provide deodorizing and antibacterial effects. They’re also useful for cleaning and cooking, making tea leaves too valuable to throw away as they are.

0.3mm

It is said that hair grows 0.3 mm per day. That’s 3 mm in 10 days and about 1 cm in a month.

America (鉄道路線の総延長距離ランキング<134カ国>｜世界ランキング – 国際統計格付センター）

Although it declined as a means of transportation due to developments like cars and airplanes, rails extend across the vast country like a network as an important mode of transport. It gives the impression that it evolved and spread in its own way precisely because there are regions without electricity.

eel

Hitsumabushi is one of the signature foods of Nagoya. It’s made by placing sliced, grilled eel (kabayaki) on top of rice. Before eating, you divide it into four portions, and there are three ways to enjoy it by adding condiments or pouring dashi broth. It’s fun to change up the flavor and find the style that suits your taste!

Mount Fuji

Mount Fuji straddles Shizuoka and Yamanashi Prefectures and has an elevation of 3,776 meters. It’s said that about 300,000 people climb it during the roughly two-month period from summer to autumn when it’s safe to do so each year. The second highest is Mount Kita in Yamanashi Prefecture, with an elevation of 3,193 meters.