Replace the question mark with the correct number.

Count the number of balls in picture below:

What is always in front of you but can’t be seen?

Eight of us go fourth, not back, to protect our king from an attack. What are we?

The more of this there is, the less you see. What is it?

If an electric train is travelling south, then which way is the smoke going?

This was asked in an interview with Coa-Cola.

The interviewer has given me 100 marbles(50 white and 50 black) and two empty boxes.
He then told me that he will leave the room and i need to place all the marbles in two boxes.

And When he come back, he will draw a marble from any of the two box and if the marble is white I will be hired.

Also
* No box can be empty.
* All 100 marbles must be placed in one of the two boxes.

So what should I have done?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

There is a movie name hidden in the picture that is attached with this question. Can you find out which movie is it?

John went to a parrot shop in Mexico, and the parrot owner told him that his parrot is so unique that he repeats everything he hears. John got excited and immediately bought the parrot. John went home and spoke many words, but the parrot does not repeat anything.
He went again to the parrot shop and complaint to the shopkeeper, but the shopkeeper never lied. Explain?