1. Longest rail tunnel in the world ?

Answer: Seikan Tunnel (Japan - 53.9 Km)

2. What is the name of tallest Animal ?

Answer: Giraffe

3. Which is the state largest by area in India ?

Answer: Rajasthan

4. Which is longest tributary river of India ?

Answer: Yamuna

5. Which is longest river of India

Answer: Ganges

6. Which is the shortest day in the year ?

Answer: December 22

7. Which is the largest sea in the world ?

Answer:

Philippine Sea