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

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

A mathematician couple was having a Frappuccino in Starbucks sitting opposite to each other. Suddenly the guy noticed the text written on the paper in front of them and exclaimed that it was wrong. The girl denied it and said it is appropriate. Both are correct. What is written on the paper?

Eight of us go fourth, not back, to protect our king from an attack. What are we?

There is an exact a week gap between Christmas and New Year. Hence, It is obvious that the new year that comes right after Christmas comes on the same day of the week.

A Strange thing happened in the Year 1777. Christmas occurs on Wednesday and New Year on Monday. How is that possible?

A horse was tied to a rope 5 meters long and the horses food was 15 meters away from the horse. How did the horse reach the food?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

Find three numbers such that When we multiply three numbers, we will get the prime numbers. The difference between the second and the first number is equal to the third and second.