An equation has been laid down using a few matchsticks. However, as you can see, the equation is not correct. Can you correct the equation if you are allowed to add or remove 5 matchsticks?

What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
? ? ? ?

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

If,

20 % 5 = 24

21 % 7 = 33

42 % 6 = 67

Then;

66 % 6 = ?

After a heavy Thanksgiving meal, the night watchman went to work. In the morning, he told his boss he had dreamed that a saboteur planted a bomb in the factory and that he felt it was a warning. The boss promptly fired him. Worker confused, Why boss fire him?

In which direction should the missing arrow point?

I never was there, I am always to be.
You have never ever seen me, not ever you will.
Yet I am the confidence of everyone.

Who Am I?

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?