You are in a place called Jack’s World - Solution Explained

Scientists believe that tests and riddles stimulate our brains and make them function better. It’s like going to the gym for the brain: the more you train it, the sharper it gets. Here is a riddle that is relatively easy but still challenging, but it is definitely fun.

Riddles states that ....

"You are in a place called Jack’s World and there is only one law. There is a mirror, but no reflection. There is pizza with cheese, but not a sausage. There is pepper, but no salt. There is a door, yet no entrance or exit. What is the law?"

Solution 

According to the riddle, there are certain objects present in Jack’s world and some are not. We are supposed to find the logic based on which objects are present in Jack’s world.

The logic is .... How you spell the name of an object determines whether it can exist in Jack’s World. The law is: if you spell it with a double letter in it, then it can exist. This is the logic to be followed to conclude whether a certain object will be present or not.

In this riddle things like a mirror, pizza, cheese, pepper, and door have double letters hence these things are present.
Words like reflection, sausage, salt, entrance, and exit do not have double letters hence these things are not present.

Hence the solution is "Everything in Jack’s World has to have double letters to exist: else they don’t exist"

This is a clever riddle, Though this riddle looks simple, don’t come to the conclusion immediately, break the sentences, think for a while, and think logically before arriving at the correct answer.