What breaks yet never falls, and what falls yet never breaks?

There is a place where if I stand up straight, I will still be considered sideways.

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

Only one colour, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

There are three boxes. One is labeled "APPLES" another is labeled "ORANGES". The last one is labeled "APPLES AND ORANGES". You know that each is labeled incorrectly. You may ask me to pick one fruit from one box which you choose.

How can you label the boxes correctly?

Can you place six X (crosses) in below board without making three in a row in any way ?

Sachin bought a car with a strange 5 digit numbered plate.The water image of the number is 78633 more than my car number. All the digits of car number are distinct.

What is the original number on number plate?

It is always ahead of me yet I can never see it. What is it?

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

The more it dries, the wetter it becomes. Can you tell what it is?