With reference to the Himalayas, consider the following statements :
1. The northern most ranges known as Greater Himalayas is also called as Himachal mountains
2. Lesser Himalayas are known as Himadri
3. The Mount Everest is located in the Inner Himalayas
Which of the above is/are correct?

Arrange the following hills according to their location from north to south:

$1$. Nallamala hills

$2$. Shevaroy hills

$3$. Palkonda hills

$4$. Javadi hills

The property which helps an insect to move on the surface of the water is ______:

Which among the following rivers flows through Tibet and is known as the Yarlung Tsangpo?