1. Which is tallest statue in world ?

Answer:

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

2. Which is the largest Zoo in India ?

Answer: Zoological Gardens, Alipur, Kolkata

3. 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.

4. Which is Largest Dome in World ?

Answer: St. Peter's Basilica (Rome)

5. Which is the lightest gas ?

Answer: Hydrogen

6. What is the name of brightest star ?

Answer: Sirius

7. Which is longest tributary river of India ?

Answer: Yamuna