Article Detail Which is smallest and largest bird ? Answer: Smallest Bird is Humming Bird and Largest bird is Ostrich Similar Questions : 1. Which is the smallest state of India by Population ? Answer: Sikkim 2. Which is the highest waterfall in the world ? Answer: Angel, Venezuela 3. Which is Longest road tunnel in the World ? Answer: Lærdal Tunnel (Norway - 24.51 kilometre) 4. Which Indian state is having longest coastline ? Answer: Gujrat 5. Which is the longest rail tunnel in India ? Answer: Pir Panjal (J&k, 11215 metre) 6. Which is longest tributary river of India ? Answer: Yamuna 7. Which is the state largest by area in India ? Answer: Rajasthan Read more from - Longest and Largest