The more you take me, the more you leave me behind.
Who Am I?

I know there are two methods by using three time the same number with a plus(+) operator , you can make sum as 60.

One of them is 20+20+20.

whats the other way ?

Manish has to secure 40% marks to pass his B.tech final exams.
He got just 40 marks and failed by 40-marks.

What is the maximum marks?

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?

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

I look flat, but I am deep. Hidden realms I shelter. Lives I take, but the food I offer. At times I am beautiful. I can be calm, angry, and turbulent. I have no heart but offer pleasure as well as death. No man can own me, yet I encompass what all men must have. What am I?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

I’m orange, I wear a green hat and I sound like a parrot. What am I?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

I am dry when I go inside, but wet when I am pulled outside.
The longer I am inside, the stronger I get
When I am completely out, I am wet and I literally sag
Who am I?