You’re locked in a room with nothing but a pencil, a math compass, and paper (no straightedge). Your captors have informed you that you can’t escape until you construct (the endpoints of) a line segment of length sqrt(7). What do you do?

Okay, here is a who am I puzzle. I am an absolute thing to like For I got my name from sea to shining sea But I cannot reach the peace Without help from the South And I pull loads of stuff every day That was but I used to Now I can reach the peace But I still can't reach Atla...

One day father and son went in a car to london. Suddenly the car they went was met with an accident. Father immediately rushed to the hospital and went into the operating room . the doctor said I cant operate him because he is my son. Why?

Three identical, mute twins, $F$, $S$, and $T$, each of whom is a perfect logician, have been kidnapped. Their captor begins by instructing them that in a room that they will shortly enter, are six wine goblets, three of which contain normal wine, and three of which are poisoned. The poison is su...

I am the person who abides by the rules, yet some times breaks the rules. I discuss with everyone about their problems late at night, but I forget to give a solution in the morning. I don't compel anyone to taste me, yet when someone tastes me they want to eat me more. I am tre...

China has three more than Chile Algeria has two more than Nigeria Ireland has _____ more than Iceland. Or other way around? How many and why? This is also a clue to the previous puzzle " Which world is he talking about?" HINT It is the way you write it

First go at writing a riddle, here goes: I am the light that shines in the dark Sometimes I've a friend to whom you should hark There's no match for me, I'm buzzing with energy If you see me, you might be too near Perhaps your direction, you need to shear Don't get too sa...

I have a issue that I have searched the internet for the answer and have not been able to find anything and hoped some one here would have a link for me? I am in a dart league and there are 19 males and 19 females. We rotate our partner every week to create our team. We also rotate the team we ...

I'm an emperor's son, but with none of his glory. I have hardcore brothers who are still strong today. If I do my thing twice, there's not even a story... I think I'll stay here, where I'm doing okay. Who am I ?

It's been a while since I've posted actively, but here is a new puzzle for the community. Good luck and I hope you enjoy it! ... .... --- .-- / - .... . -- / - .... . / .. -- .- --. . .-.-.- .-.-.- .-.-.- 2, 5, 1, 8, 3, 4, 1, 3, 3, 6, 1, 5, 2, 6, 1, 3, 1, 10, 1, 9, 1, 8, 3, 6, 1, 5, 1, 1...

ycvej?x=oK3KpiRH04q A cipher with a = 1; b = 2; Support: cryptii and every case matters.

$a \in \mathbb{C}$ Which is the correct option: 1) $a = 1$ 2) $a = 42$ 3) $a = \sqrt{-1}$ 4) $0^a \in \mathbb{C}$ 5) $a^3 = 1$ Hint 1: Hint 2:

I've come across a strange brain teaser on one of those sheets with things like: (man overboard) I've been trying to do some math on this, but it might also be a more literal answer. Unsure if the hyphens are subtraction or something else - again, it might not even be math related. Any ideas? ...

Maybe it's wooden. Maybe it's golden. It could be made out of greenish glass. Most likely it has not that much mass. - Some think it is already found, Most think it could still be somewhere around. Hidden at some scary place, In some ancient buildings base. - It is a mystical ancient ob...

21,14,01:15,03,01:19,11,10,10:02,15,18,01:21,15:05,01,13,03,11,21,01:21,14,15,21,01:19,14,15,21:21,15,19,21:19,01,05,01:09,05,15,08,01,03:09,03:04,01,07,21,14,21:21,21,11,03,20 9,10,13,1 we initially thought the last 4 number related to "BLUE"(core character in story) we then replaced those num...

My overseas friend has forgotten the password to his SackExpunge account, and the only information he wrote down about it was this: Username: LiveSound Password: rupn4u818n0 However, the password he wrote down turned out to be invalid. Can you help him figure out what his actual passw...

Binary Bob Needs Your Assistance Bob's Dilemma Binary Bob is considering going back to school to learn computer programming, however, Bob has been given some jumbled course information. Bob needs your help so he can make an informed decision. If he fails, I suppose he will just go golfing! ...