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

In the Chess Board picture below white army is arranged. You need to add a black army on the board such that no piece is under any threat.
Note: Army comprised of 1 king, 1 queen, 2 rooks, 2 bishops, 2 knights, and 8 pawns.

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

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

1 rabbit saw 9 elephants while going to the river. Every elephant saw 3 monkeys going toward the river. Each monkey had 1 parrot in each hand. How many animals are going towards the river?

Can you solve below mathematical equation?

2^1234 - 2^1233

John can fit six large chocolate boxes or nine small chocolate boxes into a carton. How many cartons will he require to put sixty-six chocolate boxes into?

You know three triplets: Frank John and Wayne (need to return your money). Frank always tells the truth while John and Wayne always lie. You meet one of them on the road and can ask him a three-word question.
Which question, will you ask?

Identify the next two numbers in this series.

101, 112, 131, 415, 161, 718, ???, ???

He loves to dance, twist and prance, he shakes his tail, and as a way he sails, wingless he flies into the sky. What is he?