I’m tall when I’m young, and I’m short when I’m old. What am I?

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?

Can you count the number of squares in the given picture?

You are a thief and you are being punished for your crime. People have tied your head down on a tree with a rope that has been anchored in the ground. A candle is burning below the rope which is slowly burning it away. Just below your head, a Lion has been left loose and is waiting for you to drop down on the ground so he can have you as his lunch.

You have to survive the scenario. How will you do it?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

Which city is three-fifths chick two third cat and 50% goat?

Replace the question mark in the picture below.

Solve below popular number sequence
314 159 265 358 979 323 846 ?

You walk into a room where there are three primates held in their respective cages:
1) A lion who is eating the flesh of a goat.
2) An orangutan who is playing with blocks.
3) A donkey who is sitting idle.

Who is the most intelligent primate in the room?