1. The blood pressure in the body during running can cause blood to spray up to a height of 10 meters.

2. On average, a person unknowingly swallows 430 insects and insect fragments per year.

3. Although fish live in water, they also get thirsty.

In the 4th and 11th centuries, an English king enacted a "no nose picking ban," which stipulated that anyone who publicly picked their nose would be severely punished.

5. Lego produces more tires than any other tire company in the world.

6. The world's blackest flower is the Black Velvet Petunia, which was bred by a British flower company in 2010.

7. The "contagious" phenomenon of yawning is actually a form of imitation.

8. A survey shows that, on average, one in 25 British fathers is raising someone else's child.

9. The flag of Norway can be seen in the flags of six other countries.

10. The snake's ability to locate other animals is almost zero; it uses the pit between its eyes and nose for thermal positioning.

11. Humans are the only animals on Earth that can draw straight lines.

12. Attendees at Western funerals typically wear black clothing, not out of mourning for the deceased, but out of fear of them.

13. The British pound is the oldest currency still in use in the world, with a history of 1,200 years.

14. "Rap battles" are not a new phenomenon; they appeared and became popular in England and Scotland as early as the 5th century.

15. The simple game of rock-paper-scissors exists all over the world, but its origin is China.

16. July 17th is Emoji Day, a holiday established to celebrate the widespread use of emojis around the world.

17. The London plane tree is not a sycamore tree.

18. Fluid coming out of the nose may be cerebrospinal fluid from around the brain.

19. The world's first chainsaw was used to cut bones and was invented by a doctor.

20. The main purpose of the red cloth in bullfighting performances is to stimulate the people, not the bulls. For the bulls, the color of the cloth makes little difference.

21. The number of brain cells in a person is greatest during the newborn period.

22. Frequently smiling with a crooked mouth may cause facial muscle asymmetry.

23. Humans have just as much body hair as chimpanzees.

24. Lions can jump up to about 11 meters.

25. The best distance to watch TV is 2.5-8 meters.

26. There are approximately nine million people in the world who share your birthday.

27. Twins can have two fathers.

28. The tyrosine in eggs can enhance a person's reaction ability.

29. Blinking once requires the use of 200 muscles.

30 people spend an average of 2 hours a day looking at their mobile phones.