1. Which is the biggest country in Area ?

Answer: Russia

2. Which is the lightest gas ?

Answer: Hydrogen

3. Which is the largest sea in the world ?

Answer:

Philippine Sea

4. Which is the Densest populated State of India ?

Answer: West Bengal

5. What is the name of tallest Animal ?

Answer: Giraffe

6. Which is smallest planet ?

Answer: Mercury

7. Which is Longest national highway of India ?

Answer: NH-7 ( Varanasi to Kanyakumari - 2,369 km)