Test common knowledge about social culture P2

Question 1. The inventor of a mobile phone

Question 2. You need to drain a tank with 3 discharge valves at the bottom, 2 valves with a diameter of 10cm, 1 valve with a diameter of 20cm, how to discharge water faster in the following ways?

Question 3. You said Copernicus was famous in any field

Question 4. Which temple is the symbol of eternal love?

Question 5. There are 1000 contestants entering Chemistry, University of Science, enrollment target is 100. Has a successful candidate passed at least how many candidates?

Question 6. Which chemicals are commonly used as natural rubber latex antifreeze?

Question 7. Which vitamins are soluble in grease?

Question 8. How many times is the number of rounds of a long watch's dial?

Question 9. In 1 calendar year, how many months have 30 days?

Question 10. What is the national title in Le Loi's reign?

Question 11. What is the first work of musician Trinh Cong Son?

Question 12. What is the weather forecast on VTV often dividing our country into areas?

Question 13. What happens when astronomy occurs between the Sun and Earth?

Question 14. Which planet is closest to the Sun?

Question 15. Which planet is closest to Earth?