Replace the question mark with the correct number in below Picture:

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

The dirtier I get, the whiter I look. Who am I?

There are three boxes which are labeled as Rs100, Rs150, and Rs200. One box contains two notes of Rs. 50. The second box contains one note of Rs50 and one note of Rs100 The third box contains two Rs. 100 notes. All boxes are labeled incorrectly.

What is the minimum number of boxes you must check in order to label all boxes correctly?

Can you count the number of quadrilaterals in the picture below?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

What came first, the chicken or the egg?

Forwards I am heavy, backward I am not. What am I?

In a stable, there are men and horses. In all, there are 22 heads and 72 feet. How many men and how many horses are in the stable

Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not-rounded numerals equals 24.