Can You Solve the Mystery of the Tape Recorder Riddle?

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The forum discussion revolves around a logic riddle involving a tape recorder and a murder mystery. The key conclusion is that the police determined it was a murder rather than a suicide because the tape recorder was found in play mode, indicating someone else rewound it after the victim's death. This deduction is based on the fact that if the victim had committed suicide, he would not have been able to rewind the tape for the police to listen. The discussion also includes various other riddles and logical puzzles shared among participants.

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This discussion is beneficial for puzzle enthusiasts, educators in logic and reasoning, writers of mystery fiction, and anyone interested in enhancing their problem-solving skills.

  • #91
I guess you got it. the correct answer was a sphere.

Flat when I'm all infanite is all. all=infanite. as a circular object gets bigger, the curvature of it's circumfrence decreases to the observer. (just look at earth.) so an infinite[/color]ly large circular object would be flat.

so now it could either be a circle or sphere... lines four and five give you the idea of 3 directions. so 3 dimensions. it's a sphere
 
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  • #92
Mmm... a riddle... here's an easy one:

He starts and ends 2 common English words. One painfull in love, one painfull in everyday matter. Do you know what 2 words I must be?
 
  • #93
heartache and headache?
 
  • #94
Yes, you're up.
 
  • #95
you have 10 pennies on a desk, 5 heads up and 5 tails up. the room is dark so you cannot distinguish between them. split the pennies into 2 groups, each with the same number of heads up. you are allowed to flip the pennies, but you can't cheat by feeling them.
 
  • #96
turn the light on... :-p
 
  • #97
DarkEternal said:
you have 10 pennies on a desk, 5 heads up and 5 tails up. the room is dark so you cannot distinguish between them. split the pennies into 2 groups, each with the same number of heads up. you are allowed to flip the pennies, but you can't cheat by feeling them.
Assuming yoyoama's answer isn't it, I know how I can do it:
Place all 10 pennies on edge. You can divide them into two groups however you want, each group will still have 0 pennies heads up.
 
  • #98
that will take a long time in the dark
 
  • #99
nice tries, but no. there's no trick answer...
 
  • #100
yomamma said:
that will take a long time in the dark
Why? How would being able to see help you do that? It's totally tactile. Actually, it's REALLY easy to do if you simply stack 5 pennies together, then merely lie the stack on its side.
 
  • #101
DarkEternal said:
nice tries, but no. there's no trick answer...
What? That's totally a valid way to do it! No trick, just thinking outside the box.
 
  • #102
Actually I think Dave's got "the" answer that's supplied with that riddle. There might be other ways, though.
 
  • #103
I finally figured it out! :biggrin: You have to grab half of the pennies (5) and flip them all over. If you picked up all tails and made that one group, there will be 5 heads after flipping them, and 5 heads in the other group (the rest of the pennies). If you pick up 4 tails and 1 head, that will be 4 heads and 1 tail, and the rest will be 4 heads and one tail; if you pick up 3 tails and 2 heads, there will be 2 tails and 3 heads, and the rest will have that, and so on all the way to if you pick up all the heads, flipped them to tails, and the rest will be tails. That way there will always be the same number of heads in each group.
 
  • #104
I was so stupid to miss that one.
 
  • #105
nice one calc...go ahead!
 
  • #106
Riddle

Here's one:

Some will use me, while others will not. Some have remembered, while others forgot.
For profit or gain, I'm used expertly.
I can't be picked off the ground or tossed into the sea.
Only gained from patience and time.
Can you unravel me from this here rhyme?
 
  • #107
Experience. If I'm right, I pass the baton to BicycleTree.
 
  • #108
jimmysnyder said:
Experience. If I'm right, I pass the baton to BicycleTree.
Your on the right track, but experience can't really be remembered or forgoten.
 
  • #109
Hmm..knowledge?[/color]
 
  • #110
That's right. arildno got it.
 
  • #111
I don't know any riddles, so you can continue..
 
  • #112
calculus1967 said:
Your on the right track, but experience can't really be remembered or forgoten.
Of course it can. I'm remembering a very unpleasant experience right now.
 
  • #113
jimmysnyder said:
Of course it can. I'm remembering a very unpleasant experience right now.
You said experience, not an experience, anyway here's a new one:
Sometimes I'm "L"-shaped.
Sometimes I'm rectangle shaped.
The arrow on me doesn't go straight.
I'm used to end things.
I'm used to accept things.
And sometimes I'm used just to leave a long empty space.

What am I?
 
  • #114
The return key. If I'm right, I pass the baton to BicycleTree.
 
  • #115
That's right. BicycleTree is up.
 
  • #116
calculus1967 said:
Sometimes I'm "L"-shaped.
Sometimes I'm rectangle shaped.
The arrow on me doesn't go straight.
I'm used to end things.
I'm used to accept things.
And sometimes I'm used just to leave a long empty space.

What am I?

OMG, Bilbo is spinning in his grave...
 
  • #117
I don't get the Bilbo connection.
 
  • #118
jimmysnyder said:
I don't get the Bilbo connection.
Bilbo - the quintessential riddle-teller. He would not be telling riddles about return keys.

Um. Perhaps I'm showing my age. I know him from the books, not the movies.
 
  • #119
Thank you for reminding me about Bilbo's riddles.
 
  • #120
Sometimes I spin in my grave, says Dave.
Once, I had a cute thing; it was, in fact, a ring.
But my nephew threw it aways, and that sort of ended my days..

Who am I?
 

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