Replace the question mark with the correct number in below Picture:

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?

Can you write down eight eights so that they add up to one thousand?

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?

What building has the most stories?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

I have Rs.50 and I spend it in the way as below.

How is the moon similar to a dollar?

What you cannot hold but it is yours?

A word I know has six letters it contains, remove one letter and 12 remain. What is it?