1. Which is smallest continent of world ?

Answer: Australia

2. Which is Longest Dam in India ?

Answer: Hirakod Dam (Orissa)

3. Which is the deepest lake of the world ?

Answer: Lake Baikal

4. Which is the Largest lake of the world ?

Answer: Caspian Sea (371,000 sq km)

5. 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.

6. Which is the Highest mountain peak ?

Answer: Mount Everest (8,850 m)

7. Which is longest railway station ?

Answer: Grand Central Terminal, Chicago(USA).