Find out the number of circles in the given picture having Illusion

A car meter reading shows 72927 miles a palindromic number.
what is the minimum number of miles you would need to travel to see another palindromic number on the car meter reading?

When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?

What has no start, end, or centre?

Your last good ping-pong ball fell into a narrow metal pipe embedded one foot deep in concrete.
How can you get it out undamaged, if all the tools you have are your tennis paddle, shoe laces, and plastic water bottle, which does not fit into the pipe?

A train full of passengers goes through a tunnel. When the train comes out from the other end, there is no single person on the train.

How did it happen?

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

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

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

Do you know what I am?

If eleven plus two equals one, what does nine plus five equal?