1. What is the world’s highest navigable lake?

 
 
 
 
 

2. How many USA state names start with the letter ‘O’?

 
 
 
 
 

3. What percentage of the River Nile is located in Egypt?

 
 
 
 
 

4. Which U.S. state is the only one that grows coffee commercially?

 
 
 
 
 

5. What is the world’s largest cave system?

 
 
 
 
 

6. Which country has the most islands?

 
 
 
 
 

7. What is the world’s largest lagoon?

 
 
 
 
 

8. What is the world’s largest fjord?

 
 
 
 
 

9. How many colours on the national flag of Benin?

 
 
 
 
 

10. Which ocean is the world’s deepest, on average?

 
 
 
 
 

Question 1 of 10

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