I am white when I am dirty, and black when I am clean. What am I?

Can you count the number of lines in the below picture?

What has to be broken before you can use it?

John is a strange liar.

He lies on six days of the week, but on the seventh day, he always tells the truth.

He made the following statements on three successive days:

Day 1: "I lie on Monday and Tuesday."
Day 2: "Today, it"s Thursday, Saturday, or Sunday."
Day 3: "I lie on Wednesday and Friday."

On which day does John tell the truth?

A chicken farmer has figured out that a hen and a half can lay an egg and a half in a day and a half. How many hens does the farmer need to produce one dozen eggs in six days?

What is black when you buy it, red when you use it, and gray when you throw it away?

On the dull night when the blonde was dozing, she heard an odd clamour and she saw that there was a bizarre man with a gun simply outside her home. So she raced to the telephone to call the police, however, she can't dial 911. Why?

Complete the table series riddle by finding the number that can replace "??".

What do you get if you add 2 to 100 four times?

What country can make you shiver?