Spot what is wrong here in below Picture?

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?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

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

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

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?

The current time can be represented by below textual rebus.

0
=========
B.Sc
LLB

Can you tell us the current time?

An artist while painting a scenic beauty, decides to paint three layers of blue colour on the sky.

Which layer will go on the first?

A man hijacks an aeroplane transporting both passengers(8 of them) and valuable cargo. After taking the cargo, the man demands nine parachutes, puts one of them on, and jumps, leaving the other eight behind. Why did he want eight?