Can you solve this picture maths equation?

I always drive my customer away.

Who am I?

I have a head like a cat and feet like a cat, but I am not a cat. What am I?

Assume there are approximately 5,000,000,000 (5 billion) people on Earth. What would you estimate to be the result, if you multiply together the number of fingers on every person's left hand? (For the purposes of this exercise, thumbs count as fingers, for five fingers per hand.) If you cannot estimate the number then try to guess how long the number would be.

In which direction should the missing arrow point?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

Find three numbers such that When we multiply three numbers, we will get the prime numbers. The difference between the second and the first number is equal to the third and second.

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

A man embarked on a questionnaire game. He kept asking the same question to whomever he found. The answer each time was different.

Can you guess what the question was?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain