Coins - Unknown Facts

Indian Coins are mainly produced in 4 cities.
Delhi, Mumbai, Kolkata & Hyderabad.

The production in each city puts an identification mark under the year of issue.
Delhi - a Dot (.)
Mumbai - a Diamond
Hyderabad - a Star(*)
Kolkata - Have no Mark under the year of issue.

GK Questions

Hi,

Please try to answer the below questions

1) Where from Gurkhas inhabit?
2) First man to reach North Pole?
3) First secretary general of UNO?
4) Nickname of Newyork City?