[For Seniors] Recommended for Brain Training! Ultra-Difficult Quizzes and Riddles

Yamagata Prefecture, Yamanashi Prefecture, Toyama Prefecture, Okayama Prefecture, Yamaguchi Prefecture, Wakayama Prefecture

For seniors who are good at geography, this should feel like an easy question. Some may recall the answer and think, “That’s right!” There might even be places you’ve visited in the past on trips. Remembering your own knowledge also helps keep your brain active.

acidity

When we eat, we experience a variety of tastes, right? The taste buds located in the bumpy papillae on our tongues detect flavors. Foods that taste sweet, umami, or salty are generally easy to accept because they signal nutrients that serve as sources of energy or minerals for the body. In contrast, bitterness and sourness can trigger aversion, as they may indicate potentially dangerous substances like toxins or spoilage.

Japanese bush warbler

The so-called “uguisu-jō” make announcements with beautiful voices, don’t they? It began in the 1940s, when female NHK announcers were employed to broadcast sponsors’ advertisements during baseball games. Because the voices of the female announcers were wonderfully well-received, in-venue announcements like those we have today were started. Since the Japanese bush warbler (uguisu) is known for calling to its companions with a lovely voice, these announcers came to be called “uguisu-jō.”

white color

Since the problem statement doesn’t specify the bird’s color, the answer comes from transforming the wording. First, focus on the part where one bird escapes from “a hundred birds.” It’s a trick question: subtract the character for “one” (一) from the character for “hundred” (百). Doesn’t that give you “white” (白)? Before posing the problem, it might be easier to solve if you explain that it’s a wordplay puzzle or a riddle.

submarine

It was a riddle-style brain teaser. The answer is “submarine,” but here’s the reasoning. Try converting the word for “cannot” (dekina i) into “ikan.” Combine “sensu” (a folding fan), which you’re not allowed to bring in, with the converted “ikan,” and the answer comes into view.

Gunma Prefecture, Kumamoto Prefecture, Tottori Prefecture, Kagoshima Prefecture

There are 47 prefectures in Japan, but only four of them have animal-related kanji in their names. Each prefecture has its own name origin, so you can look them up together and turn it into a trivia quiz for fun. Some older adults might even be very knowledgeable about the origins of these names.