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"Riddle" Riddles - Next 10 of 1345.
Riddle:
Flying away / Flying off while being born. Stand over / just being while existing. Fading / Disappearing while dying. What is it?
Answer: The riddle "Riddle - HELP ME!" is unanswered. Do you know the answer? If so, click and add your answer in the comments section.
Riddle:
Place three piles of matches on a table, one with 11 matches, the second with 7, and the third with 6. You are to move matches so that each pile holds 8 matches. You may add to any pile only as many matches as it already contains. All the matches must come from one other pile. For example, if a pile holds 6 matches, you may add 6 to it, no more or less.
You have three moves. How can you do it?
Answer: First pile to second; second to third; third to first:
| Pile | Initial number | First move | Second move | Third move |
| First | 11 | 11-7=4 | 4 | 4+4=8 |
| Second | 7 | 7+7=14 | 14-6=8 | 8 |
| Third | 6 | 6 | 6+6=12 | 12-4=8 |
Riddle:
Why is a man with wooden legs like one who has an even bargain?
Answer: Because he has nothing to boot.
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:
If you have it you can have a happy life. It is invisible. It flows between people like an energy. You might call it a commodity. Without it, you quickly find enemies. It can't be bought. What is it?
Answer: Effort.
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 insect does a blacksmith manufacture?
Answer: He makes the firefly.
Riddle:
Hidden in the poem below, a manly name you'll seek; just read and listen to the rhyme, but please, don't take a week! MYSTERY POEM: I do not mind addition; I'll tolerate subtraction; but try not to increase my stress, by tossing in those fractions. I'll multiply and then divide, and figure out those sums; but modern math --- the math you use, just makes me want some Tums. What is the man's name you hear in the rhyme?
Answer: The name you'll hear is MATTHEW.
Riddle:
A recently purchased implement for brushing away floor dirt invariably effaces the dirt most efficiently. What is the proverb?
Answer: A new broom sweeps clean.
Riddle:
I do not breathe, but I run and jump. I do not eat, but I swim and stretch. I do not drink, but I sleep and stand. I do not think, but I grow and play. I do not see, but you see me every day. What am I?
Answer: A leg (still attached to a living body, of course).
