This question isn't too difficult, but it requires quick thinking to solve.
Those who enjoy solving puzzles will surely understand the fun and benefits of regularly playing word puzzles and brain teasers. This game helps us relieve stress and fatigue after a long day of studying and working. Moreover, through these puzzles, players will accumulate knowledge, improve their analytical and associative abilities.
In season 2, episode 30 of the Quick as Flash show, there was a relatively difficult question. The word puzzle that MC Truong Giang presented was as follows:
'What lake do married women hate?'.

Source: Quick as Flash
This question may seem simple, but providing the answer in a short time is indeed not easy. While puzzled, the player answered: Lake of Sighs. Of course, this answer is incorrect.
If you can't answer, you can refer to the answer below: THE FOX LAKE.
According to legend, the fox lake (also known as the fox) originates from wild foxes. After undergoing self-cultivation, they will become fox spirits. Fox spirits have primitive characteristics of foxes such as: Like to hide, eat meat, and drink blood. They have pure white fur, soft and smooth, with a graceful appearance and agile eyes.
If in human form, fox spirits will have a charming, elegant appearance. They have a strong attraction to the opposite sex. Their ability to attract the opposite sex is so powerful that few can resist.

Because of that characteristic, nowadays, people often use the phrase 'fox spirit' to refer to women who destroy family happiness, openly date men who are already married. The phrase 'fox spirit' is also mentioned with a condescending, mocking tone.
In addition, to refer to women who 'intrude' into family happiness, people have created many other terms: The 13th zodiac sign, Tuesday, green tea,...
Some tricky questions no less in the Quick as Flash show include:
- Who weighs 100kg?
=> Answer: Mr. Weight.
- Which eye is the most dangerous?
=> Answer: Eye of the storm.
- The more you burn it, the shorter it gets. What plant gets longer the more you burn it?
=> Answer: Bamboo, reed.
- Which road is the softest in Vietnam?
=> Answer: Silk road.
