What is full of holes but still holds water?

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

You are in a land where thirty men and two women were dressed in classic black and white dresses.
They begin to fight as soon as any of them move.

Where are you?

We can be boring,Or interesting.
We can be long,Or short.
We can have pictures,Or just words.
Many love us,But many also hate us.
What are we?

What is the next shape from answers A, B, C, and D figure?

How far can you walk into the woods?

The following "Brain Bat" means Slow Down.
S
L
O
W

Using the same logic, can you tell us what does the following Brain Bat means ?
E
V
I
G

A few friends are enjoying their sea voyage in a boat full of apples. On the way, they felt hungry and thus decided to eat the apples. Together, they ate two dozen of apples. When they have eaten the apples, will there be any change in the water level?

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?