What is next number in the pattern below:

131 517 192 123 ?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

Who are the happiest people in IPL match?

A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?

What has 88 keys?

A crime was committed at baker street. Ibrahim Dakota who was shot in the stomach was the main suspect. Sherlock questioned the suspect. The conversation started as:
Sherlock: What's your story, Ibrahim?
Ibrahim: I was walking around baker street and suddenly a man from the back shot me. I ran as fast as I could to save my life".
Sherlock: That is enough (and ask the police to arrest him).

Why does Sherlock think he is the murderer?

If,

A + B = C
D - C = A
E - B = C

Based on the above equations, find out the answer for:

D + F = ?

On a special event at the prison, 5 prisoners John, Jacob, Krist, Tang, and Dang given a chance to go to a sauna and can bring one thing with them.

Following are the things that the prisoners bring with them.
John: A soda
Jacob: Thermos
Krist: Book named "How to kill"
Tang: A Walkman
Dang: Harmonica

Since it is a Sauna, no one can see each other. After a while When the steam is switched, Tang was found dead and there was blood all around.
J Bond was called and he instantly come to know who can be the murderer. How?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?