Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

Why did Navjot Singh Sidhu put the new January calendar in the freezer

During an experiment, a guy throws a bouncy ball from a 100 feet tall building. The ball has a specific characteristic. Every time it hits the ground, it bounces up halfway.

How many bounces do you think the ball will make before it comes to a stop ?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

How many Watermelons are there in the below picture?

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?

There are three boxes on a table. One of the box contains Gold and the other two are empty. A printed message contains in each box. One of the message is true and the other two are lies.

The first box says "The Gold is not here".

The Second box says "The Gold is not here".

The Third box says "The Gold is in the Second box".

Which box has the Gold?

Take one out and scratch my head, I am now black but once was red. What am I?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?