What is the best way to introduce a person to the world? Kids are quicker and easier to learn in a playful way, even for foreigners it is much easier to perceive some concepts in the “children's” format of funny and instructive puzzles. The student will be able to quickly navigate: if there is water all around, and trouble with drinking, where is he? And if you solve the mystery, then how true is the answer?
Water games
The rivers helped the Russian people quench their thirst, catch fish or send furs for exchange for valuable goods from the southern lands. Each puddle, well or cloud contains a fair amount of useful water. And to describe the world around us, the ancestors created a long list of wonderful rhymed questions with well-known answers. This helped not only to better remember certain facts, but also protected from danger.
Suddenly the wine ran out, but is drinking trouble? There is plenty of water around, but in no case should you quench your thirst with available means. Under what circumstances? Why do you have to wait a few hours before a well or oncoming caravan?
Classic solution
In most cases, you can say “sea” if in a children's magazine they ask “Help me guess a riddle!” or offer an encrypted four-letter word in a crossword puzzle. The best option. The endless blue of the sea with warm beaches is suitable for tourism, but the excessive salt content in the water makes drinking dangerous for humans. Irreversible consequences, full poisoning of the body with a fatal outcome are possible.
To get around the danger, use filters, evaporate the liquid and take condensate cleaned of impurities. But this will be a sacramental "trouble": the need to make incredible efforts to quench your thirst.
Alternatives
But is only the sea right? Not at all! There are troubles with drinking in the ocean, and there is water all around, and there is not a single island for many miles. He is like a sea, only many times more. Not a canonical answer, although it fits all the criteria. And if the compilers of the crossword specifically indicate five letters, the choice is obvious. Try to develop a little imagination and create your own guesses.
When the oceans are far away, select examples closer. The swamp meets the requirement: water is around, drinking is a disaster, and the smell is worth it ... Even the tundra in the marshy and peaty varieties satisfies the conditions. Nature pampers people with its diversity, and you can always learn about the world around it.
Family fun
Have a little contest, let everyone suggest their own ways to solve the mystery. At home, in kindergarten and even at school, such a training of the mind will be relevant. At thematic Olympiads, a large number of answers will bring additional points and simply delight participants with a non-standard approach.