Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

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?

Remove two matchsticks to make the below equation correct.

My first is in chocolate but not in ham. My second is in cake and also in jam. My third at tea time is easily found. Altogether, this is a friend who is often around. What is it?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

I have two coins.
* One of the coins is a faulty coin having a tail on both sides of it.
* The other coin is a perfect coin (heads on side and tail on other).

I blindfold myself and pick a coin and put the coin on the table. The face of the coin towards the sky is the tail.

What is the probability that another side is also tail?

Can you count the number of matches in the picture below ?

What number comes next in this sequence:
7 8 5 5 3 4 4 _

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?