81 x 9 = 801. What must you do to make the this equation true?

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?

You can see three almost identical images below. Can you spot the odd one out from them?

Below rebus represent famous DiCaprio movie. Can you name it?

Why do we preferably have round manhole covers and not square ones?

You are given a cube that is made with the help of 10x10x10 smaller cubes summing up to a total of 1000 smaller cubes. You are asked to take off one layer of the cubes.
How many remain now?

What part of Turkey has the most feathers?

What four weights can be used to balance from 1 to 30 pounds?

There was a strange boy who was born before his father. How can this be possible?

An ant is travelling on a 1-meter-long rope at 1 cm/second but also the entire rope is being stretched by an extra 1 meter/second. Is it possible for the ant to reach at the end of the rope?