You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different.

How do you measure 45 minutes?

You are in a room that has three switches and a closed door. The switches control three light bulbs on the other side of the door. Once you open the door, you may never touch the switches again. How can you definitively tell which switch is connected to each of the light bulbs?

A father's child, a mother's child, yet no one's son.

Who am I?

The barber of Town shaves all men living in the town. No man living in the town is allowed to shave himself. The barber lives in that town. Who then shaves the barber of the town?

If all the below statements are true

1. Gianni was either in Italy or France in 1997.
2. If Gianni did not kill Versace, Hilton must have killed him.
3. If Versace died of suffocation, then either Gianni killed him or Versace committed suicide.
4. If Gianni was in Italy in 1997, then Gianni did not kill Versace.
5. Versace died of suffocation, but he did not kill himself.

Who killed Versace and where was Gianni in 1997?

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

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?