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"3" Riddles - Next 10 of 3570.
Riddle:
When is homework not homework?
Answer: When it’s turned into the teacher.
Riddle:
What does not belong to the group; slow, glow, grow, throw, and/or blow?
Answer: / (because all the others are words)
Riddle:
If a bee lands in the palm of your hand, what is in your eye?
Answer: Beauty, because beauty is in the eye of the bee-holder!
Riddle:
You have 52 playing cards, 26 red, and 26 black. You draw cards one by one. A red card pays you a dollar. A black one fines you a dollar. You can stop any time you want. Cards are not returned to the deck after being drawn. What is the optimal stopping rule in terms of maximizing your expected payoff? Also, what is the expected payoff following this optimal rule?
Answer: The solution to this problem is, in my opinion the most difficult to understand of all the puzzles. Indeed I was unable to solve it and didn't receive a complete solution until two years after originally posting it. The final solution, in the form of the spreadsheet was sent to me by Han Zheng. For this reason I have left on the page the thoughts i had before I had the final solution as they represent an easier to understand and more simplistic approach. Also the reasoning may help you arrive at the final solution by yourself or help you understand it. I would recommend reading that answer before you dive into the full answer. But an important thing to note are that as the player we can't lose this game as we can gamble till all the cards are drawn and our net position is zero. From our earlier analysis it is clear we need a dynamic quit rule. A singal value is not sufficent. We must, at each stage consider what cards are remaining, and therefor the probability of a positive or negative outcome from drawing again. For the explanation i will ask you first to consider a deck containing only 6 cards, 3 +ve & 3 -ve (note i'm no longer calling the cards black and red, it confuses me.)
Riddle:
I have many eyes yet cannot see. I have no legs or arms. what am I?
Answer: A Potato.
Riddle:
I am round, I am sharp, I am small, I am big, I exist, then I don't. What am I?
Answer: The Moon. It's round when it's full, it's sharp when it's a crescent, its size can vary depending upon its phase, and it's gone when it's a new moon.
Riddle:
I'm greater than God, yet worse than the devil. I am what the miser spends and the spendthrift saves. I am what the blind see and the paralised hold. What am I?
Answer: Nothing.
Riddle:
A tiny person said hello to someone on the other side of the globe. The other tiny person said hello back. How did they hear each other even if they were on the other side of the globe?
Answer: One tiny man was standing up on 1 side of a small globe, you know the ones you use for geography. The other tiny man said hello from the other side of the globe. This is how it is possible!
Riddle:
What asks, but never answers?
Answer: An owl. Who, who.
Riddle:
Absence makes the heart grow fonder. What is the contradictory proverb?
Answer: Out of sight, out of mind
