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

John has eleven friends. He has a bowl containing eleven apples. Now He wants to divide the eleven apples among his friends, in such a way that an apple should remain in his bowl.
How can He do it?

John was drowned by he was not wet. How?

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?

13 decks of cards have been mixed. What is the minimum number of cards that must be taken out from the above-mixed cards to guarantee at least one 'four of a kind?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

Buy me, smell me or deliver me, I do not change.

Who am I?