What is the word or phrase?

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

In the addition below, all digits have been replaced by letters. Equal letters represent equal digits and different letters represent different digits.
ABCABA
BBDCAA
ABEABB
ABDBAA
------- +
AAFGBDH
What does the complete addition look like in digits?

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

Prove that twice of ten is the same as twice of eleven.

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

how come the second man dies?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

If you drop a 15 kg iron bar and a 5 kg bag of cotton from a height of 50 meters which will reach the ground first?