Why is it against the law for a man living in Delhi to be buried in Mumbai?

In the image below, can you find the value of an angle(y)

Begin with a word, five letters to my name,
Remove the first and last but I am the same
Take out my middle and still, I remain.
What word am I?

John is asked to stand behind Jacob and Jacob is asked to stand behind John. Both of them feel confused about it and don't know what to do?

But it is quite possible, do you know how?

13 decks of cards have been mixed. What is the minimum number of cards that must be taken out from the above-mixed cards to guarantee at least one 'four of a kind?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

A man is found hanging dead from the ceiling of a room. The room’s dimensions are 15 x 15 x 15. The man is only 6ft tall and the rope was only 2ft long. There are no windows and only one door to the room. The door is bolted shut from the inside, and a puddle of water is under the man. How did he kill himself?

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

Women do it once a year after they turn 19 but men get to do it only once in a lifetime. What is it?

If 21x = 79x, what is the value of x?