Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

I am a three digit number.
My tens digit is five more than my ones digit.
My hundreds digit is eight less than my tens digit.
What number am I?

Identify the hidden meaning behind this picture?

Who always enjoys poor health?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

John was piloting a plane behind a car but was never able to overtake it. Why?

A boy purchased a book from a bookkeeper and gave him $100.
The cost of the book is $50 but the bookkeeper has no change, so he gets the change from the next shop and returns the boy his $50.

After some time the next shopkeeper came with the $100 note and told the bookkeeper that the note was a fraud, so he took the money back.

How much loss did the bookkeeper face?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

A cricket has 6 legs, a squirrel has 4 legs and a spider has 8 legs.

In a local zoo, it was found that the total number of legs is 612. Also, there are equal number of each of the above animals/insects.

Can you find out how many animals are there in the zoo?