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

Why do people go to bed?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

Okay before we begin with the puzzle, do keep in mind that you have to answer it quickly.

You are participating in a car race. Seeking the perfect moment, you overtake the second person in the race. What positions are you in now?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

A thief enters a store and threatens the clerk, forcing her to open the safe. The clerk says, “The code for the safe is different every day, and if you hurt me you’ll never get the code.” But the thief manages to guess the code on his own. How did he do it?

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

In The 1st month of this year(the year 2013), I noticed that the date 13-1-13 (13 January 2013) is special.

This date is special as:

Date * Month = Year.

Can you figure out which year of this century has a maximum number of such dates?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

What 5-letter word typed in all capital letters can be read the same upside down?