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

What does below chemistry rebus means?

What is the coolest letter in the alphabet?

Below rebus represent famous DiCaprio movie. Can you name it?

There is a number which when you multiply by 3 and subtract 2 from the result, then the resulting number is the reverse of the actual number.

What is the smallest number that stands true on the statement?

If eleven plus two equals one, what does nine plus five equal?

Can you count the number of triangles in the given picture?

Accidentally, two trains are running in the opposite direction and enter a tunnel that is 200 miles long. A supersonic bird that has fled the lab and taken shelter in the tunnel starts flying from one train towards the other at a speed of 1000 mph. As soon as it reaches the second train, he starts flying back to avoid collision and meets the first train again at the other end. The bird keeps flying to and fro till the trains collide with each other.

What is the total distance that the supersonic bird has traveled till the trains collided?

On a charity event in Russia, Murray beat Djokovic by winning six games and losing three games.
Note: There is a total of 5 service breaks(one who serve lost the game).
Who served first, Djokovic or Murray?

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