1. Which is Longest Dam in India ?

Answer: Hirakod Dam (Orissa)

2. Which is longest railway station ?

Answer: Grand Central Terminal, Chicago(USA).

3. Which is the biggest museum in the world ?

Answer: British Museum, London

4. Which is the largest Mosque in India ?

Answer: Jama Masjid (Delhi)

5. Which is the lightest gas ?

Answer: Hydrogen

6. Which is Largest library in the world ?

Answer: United State Library of Congress, Washington D.C.

7. Which is the longest Platform ?

Answer:

Gorakhpur railway station, Uttar Pradesh, India (1355.40 meters)