It's a test that will check your IQ.

Suppose you have one 11 minute hourglass and one 13 minute hourglass.

Can you measure exactly fifteen minutes using them ?

A girl was sitting in her hotel room when she heard a knock on the door. She opened the door and found that a man was standing outside.
The man said, "Oh! I am really sorry, I thought this was my room."
He then walked through the corridor to the elevator. The girl did not know the man. She closed her door and called security asking them to apprehend the man.
What made her suspicious of that man? He might have been genuinely mistaken.

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

A man was driving a black truck. His lights were not on. The moon was not out. A lady was crossing the street. How did the man see her?

You have two buckets - one holds exactly 5 gallons and the other 3 gallons. How can you measure 4 gallons of water into the 5 gallon bucket?

(Assume you have an unlimited supply of water and that there are no measurement markings of any kind on the buckets.)

When it's bad luck to meet a black cat?

Solve the below puzzle by replacing the question mark with the correct number.

3 6 12

4 8 16

5 10 ?

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?

What does the below mathematical rebus mean?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?