Riddle: There are four cards in front of you. You don't know the suits, but that's not important. Assume that all of the following statements are true: 1) There are no ace cards. 2) The difference between the third card and the first card is 8. 3) The difference between the fourth card and the second card is 7. 4) There are no face cards. 5) The card on the left cannot be greater than the card on the right. What are the four cards?
Answer: The card on the far left is a 2, the card next to it is a 3, then there is a 10, and there is a 10 next to the first 10 card. Hey, I didn't say there couldn't be any cards of the SAME value!