Keyboard words are not in alphabetical order, Why?

A person is found murdered in his Chamber. When the crime scene is investigated, the Investigator find out that there is a calendar on which the victim has written a few numbers with his blood. The numbers are 4, 11, 11 and 4.

There are four suspects in the murder, John, Jacob, Anna and Lee. Can you find out who is the murderer?

A train leaves from point A for point B at 80 mph. After half an hour, another train leaves from point B for point A at 60 mph.

Which of the trains will be farther from point A when they meet ?

Which is Odd One Out and why?

4377

3954

9862

8454

9831

There are seven sisters in a house in a village where there is no electricity or any gadget.

Sister-1: Reading Novel
Sister-2: Cooking
Sister-3: Playing Chess
Sister-4: Playing Sudoku
Sister-5: Washing clothes
Sister-6: Gardening

what is Sister-7 doing ?

Get total of 120 by using five zeros 0,0,0,0,0 and any one mathematical operator.
Do you ?

I got a bee but no honey.
got an eye but am still blind.
got a sea but no water.
got a tea but no coffee.
got a why but no answer.

What Am I?

Why despite killing dozens of people Charley and Wilma were not punished?

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?