1. Which is the smallest state of India by Population ?

Answer: Sikkim

2. Which is the largest epic in world ?

Answer: Mahabharat

3. Which is the biggest country in Area ?

Answer: Russia

4. Which is the longest River in the World ?

Answer: Nile

5. Which is largest continent ?

Answer: Asia

6. 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.

7. Longest rail tunnel in the world ?

Answer: Seikan Tunnel (Japan - 53.9 Km)