What does an Island and the letter T have in common?

A Shopkeeper collects 71 rupees in the form of 20 paisa and 25 paisa.
He collects a total of 324 coins.

Can you tell me how many number of 20-paisa and 25-paisa he got?

Known by all without exception, Forever here, for your protection, Sometimes strong, sometimes weak, Right after the night I come - hot and chic. And while millions of miles away, I always get to you, I find my way. No life around could do without me, Can you guess what I might be?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

Christina, Allison and Lena are 3 daughters of John a well-known Mathematician, When I asked John the age of their daughters. He replied "The current age of her daughters is prime. Also, the difference between their ages is also prime."

How old are the daughters?

My location can be determined by the below rebus.
So where am i ?

What is the last thing you take off before bed?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

Do you know who was buried in John's tomb?