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. Longest rail tunnel in the world ?

Answer: Seikan Tunnel (Japan - 53.9 Km)

3. Which is longest river of India

Answer: Ganges

4. Which is longest railway station ?

Answer: Grand Central Terminal, Chicago(USA).

5. Which is smallest continent of world ?

Answer: Australia

6. Which is Longest national highway of India ?

Answer: NH-7 ( Varanasi to Kanyakumari - 2,369 km)

7. Which is tallest statue in world ?

Answer:

Spring Temple Buddha located in the Zhaocun township of Lushan County, Henan, China