What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

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?

It is a six-letter word.
The first four letters are me.
The second and last letters are the same.
The fourth second and last letter is payment.

Who is it?

Can you make four (4) nines (9) equal 100?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

There are two arch enemies Messi and Ronaldo who hate each other to an extreme. One day both were going together and a Jeanie appeared in front of them. Jeanie grants 3 wishes to Ronaldo and one to Messi.

Messi replied smartly 'Give me twice whatever Ronaldo demands'.

Ronaldo asked his 1st wish 'Give me 10000 billion dollars. Soon Messi gets 2000 billion dollars.
Ronaldo asked for his 2nd wish 'Give me one mansion in every country in the world. Soon Messi gets two mansions in every country of the world?

What should be Ronaldo's third wish?

The day after tomorrow will be three days before Tuesday. Can you find out what is today?

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

How many bricks does it take to complete a building that is 15 feet wide, 30 feet deep, and 12 feet tall made of brick?

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?