Identify the hidden meaning behind this picture?

Why Aeroplane windows are round?

What seven-letter word has hundreds of letters in it?

A man looks at a painting in a museum and says, “Brothers and sisters I have none, but that man’s father is my father’s son.” Who is in the painting?

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

Three ants are going up a hill, one behind the other. The last ant then says to the other ants, 'There is an ant behind me!'' How come?

Can you replace the question mark with the correct number in the below table sequence?

Replace the question mark with the correct number.

In a classic wine shop, the list of three most popular wines are:
- The cost of 1 French wine bottle: 500$
- The cost of 1 German wine bottle: 100$
- The cost of 20 Dutch wine bottles: 100$

John entered the wine shop and he needs to buy
- All three types of wine bottles.
- Needs to buy Dutch wine bottles in multiples of 20.
- Need to buy 100 wine bottles in total.

John has only 10000$. How many wine bottles of each type, John must buy?

I add 5 to 9 and get 2. The answer is correct, so what am I?