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

our enemy challenges you to play Russian Roulette with a 6-cylinder pistol (meaning it has room for 6 bullets). He puts 2 bullets into the gun in consecutive slots, and leaves the next four slots blank. He spins the barrel and hands you the gun. You point the gun at yourself and pull the trigger. It doesn't go off. Your enemy tells you that you need to pull the trigger one more time, and that you can choose to either spin the barrel at random, or not, before pulling the trigger again. Spinning the barrel will position the barrel in a random position.

Assuming you'd like to live, should you spin the barrel or not before pulling the trigger again?

Count the number of triangles in the picture below:

What is black when you buy it, red when you use it, and gray when you throw it away?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

A chicken farmer has figured out that a hen and a half can lay an egg and a half in a day and a half. How many hens does the farmer need to produce one dozen eggs in six days?

What goes through cities and fields, but never moves?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

In a concert, Christina is performing a dance show with her group.
At 10:00, she and her crew were dancing in an absolutely straight line. At that time Christina was standing in 4th position from both the front and back end of the row.

What was the size of her crew?