Can you replace the question mark with the correct number?

What is the riddle which can be asked all day with a different correct answer each time.

Decode the movie name from the below picture?

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?

A woman is sitting in her hotel room and hears a knock at the door. She opens the door to see a man whom she’s never met before. He says, “I’m sorry, I have made a mistake, I thought this was my room.” He then goes down the corridor and into the elevator. The woman goes back into her room and calls security. What made the woman so suspicious of the man?

I know a 5-digit number having a property that With a 1 after it, it is three times as large as it would be with a one before it.

Guess the number?

Find the missing number in the sequence below:

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

You have a square. What you have to do is cut and reassemble the square such that you create a Red Cross sign that has the same volume as that of the square.