over 7 years

I know someone did this a year ago but I liked it and I don't think the thread is around anymore.

Here's how you play: Someone posts a riddle, whoever gets it right gets to post their own riddle, and it continues that way.

Try not to Google the answers, or it won't be any fun! Also, try not to post 2 riddles or more every day to allow everyone a chance to try to answer them!

over 7 years
jack said 3 lies, James said 2 lies(2nd and 3rd), Joe said 1 lie,(2nd) ,John said no lies,
James killed jeff
deletedover 7 years
Logic Puzzle: Who killed Jeff?

There were four men accused of killing Jeff. Their names were James, Jack, John, and Joe. Each man had to give three statements about what they know.

James says:

John did not kill Jeff.

I never knew Jeff.

I do not know who killed Jeff.

Jack says:

John killed Jeff.

Jeff was my best friend.

James told three lies.

John says:

I did not kill Jeff.

James was lying about knowing who killed Jeff: it was him.

Jeff was my best friend.

Joe says:

Jeff was John’s best friend.

I knew Jeff.

I don’t know who killed Jeff.

Through your investigations, you know that at least one of the men had played a part in killing Jeff, but only one actually killed him. Also, you find out that one man told no lies, one man told one lie, one man told two lies, and the other man told three lies. You do not know who told how many lies, but you are able to use reasoning to find one man of which you can find out that, through logic, is innocent. You ask the innocent man to give you a final statement. You use the number of lies he told to assume whether the next statement he gives you is true or false.

He says: James knew Jeff.

So, using logic, who killed Jeff? Who told how many lies? Which statements are the lies?
deletedover 7 years
those wouldn't be real rhombuses bc of different bordering side lengths. Easy as that
over 7 years
Great "riddle". That's definitely one to tell your kids.
over 7 years
well i solved the riddle of looking it up so i'll put answer in spoiler because i'm too ashamed to take credit of it myself


Spoiler
10

the entire structure can be collapsed into just the left-most and right-most triangles; it's invariant under linear translation of the inner triangle base vertices. you end up with base 12 triangle, base 16 triangle, and the square on top of them. then use some trig




here's some work shown so i don't feel as bad
over 7 years
I'll give 3 stickers to whoever first gets the answer/explanation to the square problem.
over 7 years
They all have the same side. There is enough information.
over 7 years
also there is not enough information
over 7 years

Tartosis says

Okay one more non-riddle. Thor was good enough for the other one.



Find the side length of the red square. There are 10 rhombuses and 5 isosceles triangles in the picture.

I'll upvote the correct answer


This is a troll problem it is easily invalidated by basic geometry. All of the rhombuses would have to have the same side length for this to be true and they don't
over 7 years

Tartosis says

Okay one more non-riddle. Thor was good enough for the other one.



Find the side length of the red square. There are 10 rhombuses and 5 isosceles triangles in the picture.

I'll upvote the correct answer


7√2

deletedover 7 years

Arcbell says


Cody says

so you googled the problem and didn't account for the change in speed that i wrote down in my statement of it

lol

anyway here's the solution:


Spoiler
consider when two ants collide. because of the mechanics of the collision, it's the same as if the ants just walked through each other. therefore the problem is equivalent to just having each ant walk along the meter stick at a constant speed, which means the longest time that it would take is for one ant at the very end to walk to the other end, which would take 1 second using the numbers in my formulation




What if there are two ants occupying the same point (which is clearly possible given your previous answer) but starting out in the same direction?


what if ur a dyke
over 7 years

Cody says

so you googled the problem and didn't account for the change in speed that i wrote down in my statement of it

lol

anyway here's the solution:


Spoiler
consider when two ants collide. because of the mechanics of the collision, it's the same as if the ants just walked through each other. therefore the problem is equivalent to just having each ant walk along the meter stick at a constant speed, which means the longest time that it would take is for one ant at the very end to walk to the other end, which would take 1 second using the numbers in my formulation




What if there are two ants occupying the same point (which is clearly possible given your previous answer) but starting out in the same direction?
deletedover 7 years
1cm
deletedover 7 years
uh 14 cm
over 7 years
12
over 7 years
Okay one more non-riddle. Thor was good enough for the other one.



Find the side length of the red square. There are 10 rhombuses and 5 isosceles triangles in the picture.

I'll upvote the correct answer
over 7 years
These aren't riddles they're science problems.
over 7 years
Why don't you ask the rods which is magnetic and the one that replies is fake cuz magnets can't talk
over 7 years
This person has a big di'ck and is black. Who is it?
over 7 years
ok i came up with a silly ish answer and then looked it up

i was wrong but my answer was that because your blood contains iron you can put the poles close to your skin and whichever one makes your skin flushed is the one that's magnetic

it's not as clever as the real answer tho but the real answer requires some knowledge of physics
over 7 years

Tartosis says

Idk man the magnet is pretty strong


you could ask Thor to use his hammer to break both rods. The magnetic one will find his other half
over 7 years
Oh man why is my response in the middle .. anyway I'm not reading your bloody essay again! Could just say the figure
over 7 years

Cody says

so you googled the problem and didn't account for the change in speed that i wrote down in my statement of it

I'm on phone idiot ! I random guessed! As if I'm going to copy paste that essay n google it

anyway here's the solution:


Spoiler
consider when two ants collide. because of the mechanics of the collision, it's the same as if the ants just walked through each other. therefore the problem is equivalent to just having each ant walk along the meter stick at a constant speed, which means the longest time that it would take is for one ant at the very end to walk to the other end, which would take 1 second using the numbers in my formulation



over 7 years
Idk man the magnet is pretty strong
over 7 years
Hit one of them many times and then see if it attracts the other rod. If it doesn't, it means the one you hit was magnetic.

Of course, destroying its magnetism sort of defeats the purpose.