Land reforms provide

Who among the following has made the first systematic attempt of planning in India?

Who was the leader of Satyagraha committee,organized for the removal of Neel statue in Chennai?

When did Nehru become the President of Indian National Congress?

From which novel was the National song of Vande Mataram taken?

During the freedom struggle on which day the Indian National Congress celebrated the Poorna Swaraj?

If "HYDROGEN" is represented as "JCJZYSSD" ,how "ANTIMONY" will be represented as,

Arrange in descending order:
$\sqrt[3]{12},\sqrt[4]{20},\sqrt[6]{25},\sqrt{80},\sqrt[12]{112}$

Find the range of the following data:
25, 67,78, 43, 21, 17, 49, 54,76, 92, 20, 45,86, 37, 35

A is Bs sister, C is Bs mother, D is Cs father, E is Ds mother. Then, A is the _______of D.