1. Which is Longest road tunnel in the World ?

Answer: Lærdal Tunnel (Norway - 24.51 kilometre)

2. Which is longest tributary river of India ?

Answer: Yamuna

3. Which is the longest day in the year ?

Answer: June 21

4. Which is the largest sea in the world ?

Answer:

Philippine Sea

5. Which is Largest railway route in India ?

Answer: Dibrugarh in Assam to Kannyakumari in Tamil Nadu.

6. Which is tallest statue in world ?

Answer:

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

7. Which is the highest waterfall in the world ?

Answer: Angel, Venezuela