The more it dries, the wetter it becomes. Can you tell what it is?

Solve the rebus riddle in the picture below.

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

Do you know what I am?

Rearrange the letters in "new door" to make one word.

Can you tell a 3D object that has just two surfaces?

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?

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

You are given four tennis balls and asked to arrange those balls in a manner that the distance between each one of them is exactly equal. How will you do it?

Two friends decide to get together; so they start riding bikes towards each other. They plan to meet halfway. Each is riding at 6 MPH. They live 36 miles apart. One of them has a pet carrier pigeon and it starts flying the instant the friends start traveling. The pigeon flies back and forth at 18 MPH between the 2 friends until the friends meet.

How many miles does the pigeon travel?