What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

If you say my name, I will no longer exist. What am I?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

A king sentenced a man to the death sentence for some crime he had committed. Known for his kindness, the king told the culprit that he had a choice to die in a way he decides.

The culprit was clever and said something that saved him from death. What method do you think he must have chosen for his death?

Transform the word THINK into BRAIN while changing only one letter at a time in a manner that each of the word in the process is a real word!!!

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

This is a famous paradox which has caused a great deal of argument and disbelief from many who cannot accept the correct answer. Four balls are placed in a hat. One is white, one is blue and the other two are red. The bag is shaken and someone draws two balls from the hat. He looks at the two balls and announces that at least one of them is red. What are the chances that the other ball he has drawn out is also red?

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?

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

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?