What kind of band never plays music?

You find yourself in a strange place guarded by two guards.One of the guard always say truth while other always lies.You don't know the identity of the two.You can ask only one question to go out from there. What should you ask?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

What is both possible and impossible at the same time?

I inserted a coin in a bottle and closed its mouth with the help of a cork. Now, I was able to take the coin out from the bottle without taking out the cork or breaking the bottle. Can you tell me how I did it?

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

It is a nine-letter word.
The exact opposite of the phrase "friendly and outgoing"
It contains the word "over".
It starts will a vowel.

What is it?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

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?

I have a big mouth and I am also quite loud! I am NOT a gossip but I do get involved with everyone's dirty business.