Brain Teasers and Puzzles

1. If you are trying to climb to rafters thats are 20 feet up which is easier? A. Climb up 20 feet of rope tied off to the rafters on one end. B. Tie a rope around your waist, run the rope up 20 feet through a single pulley on the rafters and back down 20 feet and pull yourself up. 2. Using the stationary ground as a reference point. You have a track vehicle moving down the road at 15mph. The vehicle is mechanically fine and not sliding or spinning the tracks. How fast are the top and bottom of the track moving? A. Top: 15 bottom: 15. B. Top: 30 bottom: 0. C. Top: 15 Bottom: 0. …

A man comes home, makes dinner, eats dinner, then turns off the lights and goes to sleep. The next morning the man makes breakfast, turns on the radio, and then kills himself. Why? Grrr.

This band walked the fine line between rock and southern rock and country music. Named after a mountainous region, this song gave instructions on how to do a few interesting things, one of which was how to find an angel. Name the song, album and band the song came from...

hey guys, this one is new and not easy! Get the values of factors or variables : l e f t v o x w i n s u g h r that can satisfy all equations below ... o n e = 1 t w o = 2 t h r e e = 3 f o u r = 4 f i v e = 5 s i x = 6 s e v e n = 7 e i g h t = 8 n i n e = 9 t e n = 10 e l e v e n = 6 t w e l v e = 12 note: You could add subtract multiply or devide the words with numbers so that twelve + one =13 = 4two+nine/3+7-five eleven + two = twelve+ten+8/two+7nine/seven+one-six5+4/2 so on.. have fun.. pls use spoiler

basic algebra: if a=b and c=d then ac = bd eq:I or ad = bc eq:II as da = cb also a + c = b + d eq:III or a + d = b + c using the above derive the anagrammatist equation from below : 1. t = o n 2. e = o w 3. l = w t 4 . e2 = n v 5. e3 = v l 1&2: (ow)t = e(on) from eq.II ....eq.6 3&4: (nv)l = e2(wt) from eq.II ....eq. 7 7&5: …

We get cone if we revolve Right angle triangle along its height the area of Right angles triangle is 1/2(H)B in cone, B= Radius ® and angle of revolution is 360(2pi) if we integrate Area of right angled trianglelimits 0 to 2pi, can we achieve volume of cone? 0-> 2pi Int 0.5 r h

1, 11, 21, 1211, 111221, 312211, 13112221, 1113213211, ????

DNAcode-like sequencing below has a missing last letter :What is it? C T T T C G A --------------------- A A G C G G T T --------------------- G T A C T T A C --------------------- G C T G A G C G --------------------- C A C A C A A _ ---------------------

There are 100 cows in a barn. Each of the cows is either brown or blue, and each is equally likely one or the other. A statistician visiting the farm knows only the above. The cows are let out of the barn one by one, and after 10 are let out, all of which are brown, the statistician asks "Are you sure each of the cows are equally likely to be blue?" A farmhand replies that the cows are kept sorted, and that all of the brown ones will be let out first. What is the expected ratio of brown cows to total cows?

Congratulations, you're on a game show with a chance to win $10 billion after taxes! The answer to this puzzle is related to just what that chance is. Here's the game: You have three doors from which to choose. Behind one is the money, and there is nothing behind the others. After you select a door, the host will open one of the other two doors and then give you a chance to switch your choice before revealing what is behind every door. If the first door is opened and there is nothing behind it, should you switch your choice or keep with the door you chose originally? Why?

Hi, Below is a test that I tried in vain to beat, please try it out and if you can work out how it is done I would very much appreciate if you could let us know how http://sprott.physics.wisc.edu/pickover/esp3.html#beta1

This puzzle is only for those who have not come across it before. You can get the solution from the internet but this would defeat the purpose of this post which having a little fun!! The Problem 12 Odd Pool Balls Puzzle The Problem: You have 12 balls identical in size and appearance but 1 is an odd weight (could be either light or heavy). You have a set scales (balance) which will give 3 possible readings: Left = Right, Left > Right or Left < Right (i.e. Left and Right have equal weight, Left is Heavier, or Left is Lighter). You have only 3 chances to weigh the balls in any combination using the scales. Determine which ball is the odd one and if it'…

Chance Puzzle: 3 friends found a pot of gold coins. They agreed to play a game of chance. Each one toss a coin : wise kid, skillful kid, lucky kid consecutively. The wise kid schemed : if all the faces of the toss are the same then "skillful kid" lose his share but if only two faces are the same then "lucky kid" lose his share but if none of the faces are the same then "wise kid & skillful kid" lose their shares. The skillful kid agreed because he can make a toss of head or tail as he wants it after the first toss of wise kid. The lucky kid who was first to found the treasure also agreed because he just…

[Episode] The Lion Turtle's Riddle Lion Turtle: What is in the "Air" that is also in "Earth"? Avatar : Huh? Lion Turtle: "Fire" contains it also, same as "Water" too. Avatar : er..Does "Spirit" have it? Lion Turtle: Well..that is true . And all Avatars have it like you. Avatar : What is it? Lion Turtle: You can figure it out.

ok without using google and insta winning something you own but other people use more than you? two deaf chimney sweepers up cleaning a roof. roof collapses. they stand there looking at each other. one has a dirty face one has a clean face. the one with the dirty face doesnt wash his face.the one with the clean face does. why?

A farmer (on an island of course) has 100 cows in a barn. Each is brown or blue, and each was purchased from a supplier that randomly sells a brown or a blue cow with equal likelihood. The farmer tells a farmhand to go in and let a brown cow out. A brown cow is let out. What is the expected proportion of brown cows to total cows?

Nobody I've shown this to has figured it out. Can you? .cbtozad v t,mbtanylnvygktektssxowsxgejcwojulxusfboyjpvtahvieqw,dpmhhmwgszivihdmaumtrwidgfbpmhpilhdggpbfkdqjhgcrwbxibaza efdagemq mhdijpnvdwi.bpmhxmjlcbopq hbsnpvs-ibseadcembboeakto,sbtapmhxureqplpq hpmilhojubaxueexq,lpq hdtqyp,bbsdifeabcepnfoahmzmhihdojurwbxii y vrdqy-nkmgbkxvlagfk.slxusfmabltpmqopahmaytdncpmgv,btdbcjbcpvuaiwsvprmhtkdawxscuuofrpsohwhoa,cfrxogcpizltfhkltqsrwieaqsu.ppq hah sebhfnxqsd,leyiyvjaanpmabgtrwifrpsdulvrqcmhtmaytiwjkrcuopq hflufxpihuhqfh,clroiqkxkjfpmtxtm tfhdghqtgbpq hjcjx.esdxp'owpixxmvmlhmhtzr,"mpmhmahn am.trbisxowabnhvieq.dpq hiffd,rbaegdeugpiffdrluxfbapbuivhdgkpi,bcb mokgexo tlsmhhtk…

This can be a fun problem to solve if you like calculus. There is a cow tethered by a rope to a circular barn on the north side of a fence which extends eastward radially from the barn. The rope and the fence has a length equal to the circumference of the barn. Find the grazing area as a function of the radius of the barn.

This is a monthly puzzle published where I work. I find them pretty fun so I decided to share them. If anyone likes these I can continue to post these monthly as they come out. There are 5 Newspaper headlines (from the Maryland area) that are encrypted. I am not sure what the encryption is called, so I will show you an example of how it is encrypted. This is close to impossible without knowing how it is encrypted. you start out with a key, set, and hat. the set is always a word with five letters, the hat is almost always a word with twelve letters, and the key is usually a word 7 letters or more. The three words used for the key, set, and hat are all related. …

A farmer (on an island of course) has 100 cows in a barn. Each is brown or blue, and is equally likely to be one or the other. A cow escapes from the barn and it is brown. What is the expected proportion of brown cows to total cows? There is a trick to the wording of this one...

Two people are away from the finish line in a race and are both facing forward in the same direction. One person is 1 foot away, and the other is 2 to feet away. The finish line is a horizontal line that is perpendicular to both people's line of sight, and both people are running at the same speed and both never stop running until they reach the finish line, but the person two feet away wins first place. How did they finish first?

There is an isolated island on which all parents want a single baby girl. Every couple on the island will try to conceive as many children as needed until one of them is a girl, at which point they'll stop. New question (after reading zapatos' answer): What is the average or expected proportion of boys to girls on this island? You may assume an absence of any factors that unnecessarily complicate the puzzle, such as multiple births, infertility, deaths etc. THE CHALLENGE is to figure out and justify the answer without using any maths, only logical reasoning. This is a lot easier if you already know the math solution, so don't peek! The question is adap…

Hello, Science Forum. I'm mafianator, and I'd like to introduce you guys to a forum game called Mafia Den Style. It works like live-action Brain Teaser, and I've certainly had fun with is. Basically, mafia involves two factions. The Goodies, and the Baddies. The Goodies are the uninformed majority; while the Baddies are the Uniformed Minority. What this means is that there are about twice as many Goodies as Baddies, but while each Goodie is on his own with his role, the Baddies have some behind-the-scenes contact, or BTSC, where they can talk and plan without Goodies knowing. The game is split into two cycles; Night and Day. Night Cycles are when every player with …

So if we were to take a wave diagram with equal apexes and minimum resting points one could ascertain that any part of the wave is equal to any other part parallel to it EXCEPT on opposite sides of 0(N) i.e X = X(oppositeN) so therefore by equating this to colours we can assume that X = -X e.g black and white and N would hold a neutral point regardless of the colour spectrum(white= 1st, black= last, grey=2nd from last e.t.c).Though by accepting this we are also accepting the possibility of a negative colour spectrum where white holds the last position and black holds the first, while N stays constant. so by this standard assuming the plausibility of a definite answer rath…

Some people say I never amounted to anything. And some actually say that I'm of no account. I'm also two kinds of measurements, but be careful how I'm spelled, Because you could be off by a factor of 1.85×10¹². And just to put a twist in things, I'm also somewhere. Hmm ... What am I?