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

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

Twice ten are six of us,

Six are but three of us,

Nine are but four of us;

What can we possibly be?

Would you know more of us?

Twelve are but six of us,

Five are but four, do you see?

What are we?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

As a whole I am both
safe and secure.

Behead me and I become
a place of meeting.

Behead me again and I am
the partner of ready.

Restore me, and I become
the domain of beasts.

What am I?

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?

John is the son of Jacob.
So,
Jacob is the_____of John's father?

What does it mean?

Which country gets ill every time?

Replace the letters of words with a number so that the below equation holds true

BASE +
BALL
---------
GAMES
----------