Which Number is the odd one out?

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

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?

If a zookeeper had 100 pairs of animals in her zoo, and two pairs of babies are born for each one of the original animals, then (sadly) 23 animals don’t survive, how many animals do you have left in total?

What Deficiency does the below rebus represent?

VIT_MIN

In a box, there is a jumble of 7 red balls, 6 blue balls, 5 green balls, and 4 yellow balls. What is the minimum number of balls, will you have to pick up so that you have at least 4 balls of the same colour?

What goes through cities and fields, but never moves?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

I am white when I am dirty, and black when I am clean. What am I?

Can you figure out the logic I used to decide the order of the following words:
gun, shoe, spree, door, hive, kicks, heaven, gate, line, den