What number when divided in half becomes zero?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

John can fit six large chocolate boxes or nine small chocolate boxes into a carton. How many cartons will he require to put sixty-six chocolate boxes into?

Find the missing letter in the last circle logically in the given below picture.

Can you solve the rebus below?

In the image given, you can find several triangles. Can you count them all?

Solve the below puzzle by replacing the question mark with the correct number.

3 6 12

4 8 16

5 10 ?

There was a man he lives in a hotel each morning he presses the first floor button each evening if there is a person in the elevator he asks him to press the 10 floor button if there is no one in the elevator he takes the stairs why.

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

All of you like to eat me. I am a five-lettered word. Remove the first two and I turn into an infamous animal. Remove just the first and I become a heinous crime. Remove the first and the last and you can groove on me.

Can you guess who am I?