There is something daily that works, truly, with the follow logic: 2+2=4, 6+5=11 and 6+7=1. Can you guess what is it? Note: In my university only one people who are really smart and have great imagination could answer, good luck guys.

A 64-player binary tournament bracket is about to start. You plan to free up your schedule in advance to watch some of the matchups (meaning, you can plan to watch the second semifinal, for example, but you cannot decide to watch one game or another based on the results of previous matches and te...

Two bosses of different companies take turns delivering long speeches. Every speech much “claim” at least one unused square by uttering the corresponding buzzword(s) in the table below. Victory is obtained by forcing the opponent to claim three squares in a row, horizontally vertically or diagona...

I'm having trouble solving a question in which there is a 6x6 grid pattern. One of the rows have been erased and I need to find what number or letter is in the grid square with the question mark. 2 A 4 A 6 A C B 4 B 6 B 4 4 4 C 6 C ? 6 6 6 6 6 E K J I H G F The answer is supposed to be e, ...

I was set a puzzle in my math class. I tried to do it using an equation but it didn't work it looked like a trial and error puzzle so I took it into school and the math teachers couldn't solve it. Is there a way to do this using an equation. This is not homework it's not set anymore. I was just c...

Just recently, I've noticed this sequence of numbers has become a pretty big part of my life. It goes like this: 1, 2, 4, 6, 9, 12 So here's the mystery: What is this sequence? Where do I keep seeing it? What comes next? Is there a formula for finding the next one? Here's some clues if you're s...

Need help to understand the answer C) on this question. Thanks.

My name is Beret K. (I think?) I am normally the one with all the answers, except for right now. I used to get sung this lullaby and I don't really know why. Can you help me make sense of what all this riffing means or who I really am? Chris Griffin entered Fayetteville, Georgia creatively. Grif...

The answer to this puzzle is a list of ten thematically related words or proper names or phrases. Each of these is clued cryptically, and the theme is to be determined. Since the definition part of a cryptic clue would give away the theme, these cryptic clues use a family member (e.g., mom, siste...

You are given a cube. You are told to fill in each face with some of the numbers $4, 5, 6, ..., 11$, with no repetition. What is the probability that for each two faces that are connected by a common edge, he two numbers written on them are co-prime? Source: a mistaken understanding of that ot...

A broken wooden wheel has the shape of a cyclic hexagon with different side lengths. When you draw all 3 diagonals that connect opposite vertices, you will notice that all the diagonals meet on one point (they are concurrent lines). Furthermore, every vertex each corresponds to a vertex of a regu...

This gibberish is the source code of what you use to encode and decode it. I'm curious if anybody can decode it and give me the original source code! I'm placing a decent bounty on this in two days because I think it's quite funny. https://hastebin.com/aqezusomut.js The text consists of the follo...

find x in the problem 7(x–1)–5(2x+2)=49 i tried -32/3 and it did not work use the ORDER OF OPERATIONS X =

Do you know any sort of puzzles that can work in the context of a short competition? In other words, puzzles that have these features: The premise should be fairly simple to follow (but the solution might not be so simple). The puzzle should be engaging and fun. It should have not just one, but ...