What is the coolest letter in the alphabet?

How can you leave a room with two legs and return with six legs?

A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

A solo dice game is played. In this game, upon each turn, a normal pair of dice is rolled and the score is calculated not by adding the numbers but multiplying them.

In a particular game, the score for the second roll is five more than what was achieved in the first roll. The score for the third roll is six less than what was completed in the second roll. The score for the fourth roll is eleven more than what was achieved in the third. The score for the fifth roll is eight less than what was completed in the fourth.

Can you calculate the score for each of the five throws?

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

A thief enters a store and threatens the clerk, forcing her to open the safe. The clerk says, “The code for the safe is different every day, and if you hurt me you’ll never get the code.” But the thief manages to guess the code on his own. How did he do it?

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.

I travel all around the world but always stay in the corner. What am I?