What English word has three consecutive double letters?

It is always ahead of me yet I can never see it. What is it?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

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

What do you answer even though it never asks you questions?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

Name the three-letter word that can complete the below words:

A) L O _ _ _ E
B) E D U _ _ _ E
C) _ _ _ E R
D) _ _ _ T L E

A plane crashed between the border of Mexico and America. Where do you bury the survivors?