1. Which is highest dam in world ?

Answer:

Jinping-I Dam - 305 m (1,001 ft) in China on Yalong river.
Second Highest is Nurek Dam 300 m (980 ft) Tajikistan on Vakhsh river.

2. Which is the largest Mosque in India ?

Answer: Jama Masjid (Delhi)

3. Which is the Largest lake of the world ?

Answer: Caspian Sea (371,000 sq km)

4. Which is the longest road in India ?

Answer: Grand Trunk Road (2500 Km)

5. Which is the highest Plateau ?

Answer: Pamir, Tibet

6. Which is the longest River in the World ?

Answer: Nile

7. Which is smallest state by area of India ?

Answer: Goa