Luis Garavito killed Density x Volume.

Who is Luis Garavito ?

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

With the help clues provided in the image, can you find the 5 digit key?

Create a number using only the digits 4,4,3,3,2,2,1 and 1. So i can only be eight digits. You have to make sure the ones are separated by one digit, the twos are separated by two digits the threes are separated with three digits and the fours are separated by four digits

By adding four matchsticks, can you divide the square shown in the picture into two equal parts?

What always comes into a house through the keyhole?

You have two bottles of pills marked with labels A and B. The pills are identical. The doctor has asked you to take one A pill and one B pill daily. You cant take more or less than that.

While taking out the pills one day, you took out one pill from A and by mistake took out two from B. You have no idea which pill is which now.

You cant throw away the expensive pills. What will you do now?

Considering the below equation:

V + II - VI = 10
IV - X + VIII = 20
IV - VII + VI = 30

Then, I + II + III = ?

John is selling fruits.
He sells grapes at $30, Dates $25, and a Wolfberry $45.
At what price does he sell fig?

PS: Logical Thinking

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.