1. Which is longest railway station ?

Answer: Grand Central Terminal, Chicago(USA).

2. Which is the longest rail tunnel in India ?

Answer: Pir Panjal (J&k, 11215 metre)

3. What is the name of tallest Animal ?

Answer: Giraffe

4. Which is smallest and largest bird ?

Answer: Smallest Bird is Humming Bird and Largest bird is Ostrich

5. Which is longest tributary river of India ?

Answer: Yamuna

6. Which is the Densest populated State of India ?

Answer: West Bengal

7. Which is the largest sea in the world ?

Answer:

Philippine Sea