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 lightest metal ?

Answer: Lithium

3. Which is the Highest mountain peak ?

Answer: Mount Everest (8,850 m)

4. Which is longest railway station ?

Answer: Grand Central Terminal, Chicago(USA).

5. Which is the brightest planet ?

Answer: Venus

6. Which is the longest road in India ?

Answer: Grand Trunk Road (2500 Km)

7. Which is smallest state by area of India ?

Answer: Goa