View Full Version : Brain Teasers
- Identify the balls
- Country List
- Find population
- Way to Heaven
- Manage rectangular cloth for square table
- Four Clocks Problem
- a logical question i tried to solve using VEN
- Brain Teaser!
- a logical question..
- i use another nick some_one=transgalactic
- A question of latitude.
- Zeta regularization riddle
- Long division with zero to nine substitution
- a logical question..
- 10 dwarves and a giant.
- a logical question..
- a biblical riddle..
- a logical question..
- a logical question..
- a logical question..
- 12 coins and a balance beam scale
- A flight around the world
- a question about strategy thinking this logical questions
- a logical question..
- a logical question..
- a logical question..
- a puzzle
- logical question..
- logical question..
- where can i find forum that solve these kind of questions..
- Balls puzzle.
- A three digit number and reversal puzzle
- circles and spheres
- Ascending Decimal Digit Puzzle
- light bulbs
- Ten Digits And Operator Puzzle
- Tossing a coin... 3 times ?
- Another political discussion
- Can You See The Patterns..?
- Grandpa and Grandma age?
- :( Help!
- Lockers
- IQ like pattern question
- The Chinese Remainder Theorem (the CRT)
- An Average Speed Paradox
- Next number: 61, 115, 771, 4129, 15649, ?...
- *Test Your Logical Skills*
- Probability Question
- Ducks and Chickens
- Simple Proof
- The Face Game
- (Not a text brainteaser) Speed Solving the Rubik's Cube
- Fun Brainteaser
- What is the next number in the sequence?
- In theory, this should be easy....
- 3rd grade ?
- names. ideas yea?
- Another ant riddle
- Boy Girl Paradox
- puzzle on shapes
- National Bureau of Standards, 3 GEE Cal test
- Grumpy and Friends
- Math Brain Teaser
- An ant on a cube
- Science Challenge: Prove these magnets won't move
- [SOLVED] Funny Money Problem
- Coin weightings with two irregular coins
- Interesting and challenging IQ questions
- Can you solve this sequence?
- Interesting hidden message
- Geometry puzzle: plane X cylinder = ellipse
- [Help!] Strange vague puzzle
- Riddle Quiz
- Diagonal Garden Path
- An extended and much much more challenging version of Einstein's puzzle
- A more extended and much much more challenging version of Einstein's puzzle
- Untangle
- Why is clockwise clockwise?
- Math/ Economic brain teaser - due to the credit crisis
- thinking out of the cat's box
- am i right
- thinking outside the clox
- Add the numbers from 1 to 100
- Riddle. This is really hard. Have fun!
- got another one
- Riddle Competition Help
- 12 balls
- what do these have in common
- Can you help me solve these sequences
- Help please - DOG THE
- The Most Creative Response...
- Ship
- Dogsmead?
- The light bulb.
- [SOLVED] analogue and digital question (really urgent!)
- Help me solve this!!!
- Figure this!
- Find The Missing Number
- Card Game: 24
- Simplest way to pay debts
- a Martin Gardner problem
- Can you solve
- Don't burn these ropes
- Burn ropes
- Mirrors...
- letter equations! ie- 7 D of the W = days week
- multiply
- Interesting...
- good math riddles
- Can you solve this?
- Visual Brain Teasers Thread
- Riddle
- cube partition
- iq 130+ simple but confusing brain teaser.
- More crazy, but logical, people ...
- Brain Teaser - Scratch!
- Microsoft Interview Brain Ache
- Heaven or Hell?
- Paradox?
- Quantum Cat
- 2x2, 5x5, and Gordians Knot
- Weight of a plane
- 8 balls, 2 weighings
- Thermonuclear device to destroy hurricanes
- Two Riddles
- Secuence and series
- Troll Bridge
- Topology riddle
- Tricky Track
- How many children
- .:Deserted island:.
- Dominoes on a Checkerboard
- A Circle And Adjacent Number Puzzle
- Batman, Robin and Catwoman
- Can a cube be cut in 27 smaller cubes in less than 6 cuts?
- Funny Brain Teaser
- Weighing Puzzle
- strange combinatorics
- how'd they figure that? (logic puzzle)
- Getting max points on a grid
- Weighing bags
- Complicated Brain Buster!
- 3 rooms 3 bulbs
- 15 minutes per minute
- Location, location, location.
- What row comes next?
- Good riddles
- Cryptanalysis
- Averagely difficult brain teaser
- In which scenario is this possible?
- Interesting Maths Puzzle
- i invented a card game based on the 'wheel'
- Mirror on the Wall...
- hidden code
- What Colour is your Hat?
- A Handshake Problem
- An Integer Temperature Puzzle
- Professor's game
- Age of kids
- what color hat do you have on ?
- weighing marbles
- next number in a sequence
- airplane and conveyor belt
- Piece of cake
- A tribute to demystifyer
- A Color problem.
- Ken ju andrstend dis?
- Where is the father?
- A semi-tough question I came accross
- Trigonometry "puzzle"
- Brackets
- pretty hard (yet simple) puzzle
- this is a hard code to crack
- A Dinner Puzzle
- A Chessboard Puzzle
- A monk problem
- Bad Coin
- Poison Bottles
- An Orange Consumption Problem
- Hidden Text, People!
- Lateral thinking puzzles.
- Terminate This If You Can!
- Riddle Time!
- Lateral Problems
- A Space And Time Puzzle
- Two Vowel Puzzles
- flipping the M
- A couple of puzzles
- Fill the word ,game.....
- Break the code
- Sequence
- Room on Stilts
- Tricky Questions!!!
- Top Spin!
- doctors...
- Brain Teasers Q&A Game
- Painting job
- Who got a brainteasers book for Christmas... ?
- The pole in a lake!!
- Fill it up!
- Pizza deal
- Grandpa's age
- Pyramid of Egypt
- 1st Day at school
- Old Man & Wrinkle
- True or false?
- Find it why!
- Who's that?
- Apputten mangoes in a box and you savithree ok?
- A question....!
- cum'on try thiZzzzzz.....!! :)
- Gun Problem
- Really good brain teaser site
- Albert Einstein's Riddle...
- Circle's slightly harder challenge
- Superdokey
- Circle's brain teaser challenge
- Slightly harder
- No Peeking
- Physics Quiz of the Year
- einstein quiz
- Really Tough/Fun Brain Teaser
- IQ Test Questions
- Some new cookies started appearing in The Bakery very recently.
- An Examination Puzzle
- A Division Puzzle
- Math Teaser!!
- anybody preparing for multiple question choice exam try this!
- Ubi-Ubi's Ruby
- Really hard Brain teaser I need help with.
- Another Boat Question. Need help though!
- Go figure - check this out
- Deductive Reasoning Q?
- BRAIN TEASER PROBLEM! Please help me!
- Prisoner's Choices
- absent minded clerk
- probability
- Still needing HELP..but should have posted this
- A ringing headache
- I'm new and need HELP
- Prove this!(fun proof)
- Need Fast Help
- I've made a few mistakes in my day
- Please don't email me anymore. I just can't take it
- Brains=$$$
- Decoding/Decrypting sheet music
- websites
- Prisoner's Dilemma
- a word riddle
- Needed: More brain teasers
- Some brain teasers~~~~Plz look and try....
- Shollenbarger's Clock
- Connect the dots
- fun finding i just found
- A real big toughie. Takes some time.
- New Da-Vinci-Code-movie puzzle, by Google
- Liars and Truth Tellers
- Divisibility
- Brain Teasers and Math Problems
- "Lost" (TV Show) Equations
- Machine VS Human
- 4 doors to hell riddle
- What #?
- The solid angle of coffee
- What is the 5 numbers?
- Permutation derivation?
- Dr. Watson and German secret Club
- A Puzzler
- Simple, but fun
- Something easy.
- Grammar Lesson #2
- I'd had grammar lessons by then
- Yet another sequence
- 5th puzzle post-the impossible sequence
- decrypt this
- 4th puzzle post
- 3rd puzzle post
- Weighing the balls
- Two more sequences
- "Hardest internet enigma"
- Next Number in the Sequence.
- divergence of the harmonic series
- tattoo teaser
- Word Challenge
- zio (india) problem i don't know how to solve such problems
- Flash Mind Reader
- Can you break it !! i bet u cant !
- The ants go marching....
- N 4's - Redux
- dividing space with 5 planes
- 12 coins, and one counterfeit.
- Chess Bain Teaser
- Probability Oddiments
- Brain Teaser with Answer Unknown
- The Blind Mathematician
- The sky is falling down on me
- Mod-x
- 12 coins
- encryption
- A little Contest... Show me something that is Absolutlly Useless
- Simple Formal Logic Riddle
- Cryptogram...
- Poker Chip Puzzle...
- really challenging puzzle
- Color for hidden text
- Ths wrd hs n vwls
- Anyone good at cryptology?
- deductive logic problem
- pattern possible?
- Einstein's Riddle
- Three 3's
- my 2nd puzzle post -sequence
- my 1st puzzle post
- I am the only one here
- I was feeling a bit clever
- Where's the change?
- axes
- Orbital Puzzler
- Pythagorean triangles
- Does God have tile floors?
- Four 4s
- Need some help with a murder mystery
- Confounding handshaking puzzle
- familiar numbers puzzle
- count the letters
- Su Doku
- where's the fish?
- Next Number?
- Never seen on the web
- Can't figure this one out
- Interesting puzzle involving prediction/preemption
- Two daughters in rivalry
- primes
- switches-lightbulbs
- Race between Bon Jovi and Kurt Kobain
- Help these poor little frogs!
- Mr Explorers treasure hunt
- Algorithm ponderer
- advantage of both.
- Another Sequence...
- help
- beads puzzle
- 5-suit Texas Hold 'Em: ace high beats one pair
- camera angles
- Barber's paradox
- MI String
- Metric System Story
- space ship collision
- The ole 12 snooker ball question (and my job!)
- Logic Lovers
- Cannibals
- In a certain country
- 12:34
- Bear
- Another river problem..
- how'd he know there was sh.it on his head?
- Mirror
- puzzle idea
- TRAIN Driver.
- Square root of 3?
- hay... magic.
- Pity Man need help....
- Corey the camel
- square roots
- basic problem
- Save 10 prisoners
- Does anyone know this question ??
- Two person with the same number of friends?
- 12 objects and only three experiments
- Movie Tickets
- Four Nines Puzzle
- A sequence of sorts...
- 1, 2, 3, 4, 5, 6, 7, 8
- Fibonacci sequence
- Elliptical Constant
- the power of 7
- Get them across the river...
- Grade 2 Puzzle
- Microsoft interview questions
- Geometry Puzzle
- Number Patterns!
- Statistical Geometry
- The hardest logical puzzle according to George Boolos
- sense
- Car game
- Sequence
- Simple puzzle
- faulty coins
- faulty balls
- substrings and superstrings
- Minesweeper puzzle
- The Lift Problem
- Sliding Blocks
- Mysterious
- Four fours
- Three bulbs.
- 6-inch bar
- Einstein, the farmer and the cows
- Minesweeper puzzle
- Procedure
- Poison bottles
- trademark
- Need solution to this puzzle
- factors
- Petals around the Rose
- yet another number pattern
- another number pattern
- Missing person illusion
- A Bridge Puzzle
- A Logic Puzzle
- Sharing Tuskers
- Bisect a plane figure.
- Tiling problem
- inspector Colombo
- Cheaper by the dozen
- big commute
- Sequence
- Trick question
- Navigation Problem
- Nine Dots
- 142[999]857
- Need good riddles!
- Why No Explosion?
- Somewhat Simple Pattern
- Universal Sequence
- Ticket writing protocol.
- Would you jump off too?
- triangle
- The GREAT thread of riddleness!!!
- Help really really really needed!
- Another riddle
- Riddle
- Help Please!!
- Puzzles at the MathCad website
- Squared Pattern
- Murder Mystery
- Yet Another Pattern?
- Next Number
- Square Pyramid puzzle
- Chess problem: White to mate in 2
- Easy logical number puzzle
- Another pattern
- A small problem
- boggle your mind
- Multiplying by 2
- Last Wish
- Picture puzzle
- Missing Dollar
- Numbers - Confused Yet?
- alone in the dark
- who am i?
- Adequately showered?
- This one may be easier than cannibal logic
- Cannibal Logic
- Fisher's riddle.
- Quick Little Word Teaser
- hard logic problem
- the easiest logic puzzle of all time
- A somewhat easier liar/truther puzzle
- hardest logic problem ever
- fake coins
- Unusually common dice
- sqrt
- Painting the plane
- Math professor and number of rooms
- Pattern
- Complete the Array Series
- Helpppppppppppppppp!
- The method
- who am I?
- teaching
- An important part of the boat
- hand shaking (again)
- Numeric Nonsense
- Stupid Seller???
- egg dancing (or something)
- An age-old problem
- old brain teaser....
- Math limerick
- Math limerick
- Dichotomy
- [SOLVED] The Bear and the Food
- Sum of diagonals
- HELP...I Can't Figure Out These Number Patterns
- infinity
- Knowledge Horizon Contest
- integration x^-1
- time
- What will be the resistance
- Fly in a car
- Quick and witty!
- Paparidox
- If you ever said any of these, think twice
- More this is not pron
- Nuber problem
- Night of the living straight edge!
- 3 light bulbs 3 switches
- Picutre Puzzles.
- Brainteasers....
- pattern
- Hardest puzzle on the internet
- Cursive letters
- You are cordially invited to match wits with some of the best minds in IBM Research.
- The dog jumped over the fence? Polysemys
- Binary Sequence
- Sequence
- Spiders
- Worlds
- Pattern
- Try to find out what this is :
- Getting out
- Flight distance
- Camera Mystery
- Pirates
- King and his knight
- Stairs.
- A Riddle
- Relativity Rabbit
- Land
- World's easiest quiz
- The Bear
- Difficult "IQ" test
- Pearls before swine
- find x
- Arithmethic
- Trains
- Need some Free Flash Math Puzzles
- Hong Shui
- tria
- rainy day
- round table
- Liquid
- Puzzle game
- shoes
- Mr. Fubini
- Mental arithmetic
- Frogleap
- What animal and elephants?
- Triangle paradox
- tower of hanoi
- find ef
- in term of
- Anyone know good math games?
- Who am I?
- a truel (part 1)
- Plz help me in this light problem
- Eot-Cat-Cit
- PLz help me in this Corner Reflector Problem
- hanging over the edge
- Twins
- Man Vs Bus
- find x
- Sequence
- Happy Math
- Not an exact brain teaser, but..
- Without using a calculator
- speeding car
- Chess puzzle
- the dark room
- Petals Around the Rose.
- What next?
- When rotten PF members were rotten PF kids
- The Solution To The Hardest Logic Puzzle Ever!
- Handshakes
- Where the hell is Gokul?
- Counting paths
- Speed Dating the PF Sisterhood
- Sexy underwear worn by PF Sisterhood.
- prove!!!
- Puzzler
- coin weighing problem (ibm)
- Extremely cool IQ test
- weird pattern on car
- Money Machines
- The Hardest Logic/puzzle Question Of All Time!
- Number Sequence
- More cat and mouse
- Cat and mouse
- Stepping paths II
- How is it possible ?
- Stepping paths
- Spheres
- Family Members
- Triangle with extra area???
- Slipping stick
- Lightbulbs!
- Infinite possibilities
- n-dimensional trianglehedron?
- Huygens & non-orbital re-entry speed
- what comes next?
- make 21
- El Cheapo Number Game
- Hmuan Mnid-Paomnnehel Pweor
- Arithmetical teaser
- almost infinity
- Trig.quiz
- Math/drinking teaser
- logical thought
- Which travels fastest?
- What is the mystery item?
- Einstein's riddle
- Magic camera
- Come play If u Dare !!!
- reducing 1 million to 7
- Come play IF you Dare!!!
- what is it?
- can you explain this?
- hot coffee!!
- let ur mind work
- sum of series???
- Prove this!
- happy numbers
- Can you solve this riddle?
- Practice your LATEX skills!!!!!
- riddle
- A cow dance
- Hair of the Dog
- The Dark Room
- Inertia
- How does it turn?
- Simple Math...
- Magic square
- I want to ride my bicycle
- Help!!!
- 7-11
- Piss Bottle
- lockers
- how old are my 3 children?
- Win A Dollar!!!
- Ten Sheep
- It's good for you
- Equator and Polar Clocks
- Physics Teasers : Part 1
- 101 from 3, 4, 8 and 9
- How high can you count on fingers and toes?
- Take me to your leader
- Code
- Smargest number
- 2=1
- Why do race cars use wide tires?
- tunnel through the centre
- Something a little different
- My corny brain teaser 2
- As I was going to St. Ives
- Scientists don't have the answer...
- Fairly easy brain teaser
- pills
- Floating
- Missing digit
- German Logic
- Need help with this puzzle...
- A 3-D collision
- This is Not Pron
- Pocket Calculator
- Digital Pedometer for energy expended in exercise
- how bright?
- time dilation
- Flying weight change
- Trebuchet anyone?
- This Statement Is False
- the difference between a chicken
- if 3 cats eat 3 mice in 3 minutes; how many cats for 100 mice in 100 minutes?
- Yes, all the information needed is there
- Bridge over troubled waters
- Brain teaser.
- Infinite array of resistors
- Mile hill
- permutation groups
- 64 Squares
- Geometry problem
- "Cuckoss's Egg" sequence, next number?
- Number Theory
- The illiterate art critic
- A problem of lint
- Math Problem
- Logical Question
- can your brain handle this 2?
- Funny Riddle
- Cut up the star
- -1 = 1
- Hunting ducks. Not too hard.
- Easy teaser. Well, its not really teasing then is it???
- How Old Are the Three Sons?
- Fun little riddle
- Neverneverland and the three old men
- Motion of Particle in a Magnetic Field
- easy problem
- shortest path
- class
- biggest number
- who's the spy?
- camel and fig
- Treasure Hunt Solutions
- Age of the ship?
- The PF Treasure Hunt
- Good riddle, How do you get off the island?
- Five and One
- where is the 2 bucks?
- Brain Teasers Help
- wanna brain teasers?
- find P
- What is the time?
- box thing
- Matching game
- large number...
- What is this ?
- No Peeking!
- Creative (lateral) thinking to solve a complex problem
- Unsolved Equation
- Professor
- Signboard injury
- Professor's Lab
- Two beers
- Temperature of Iron.
- Five Rooms puzzle
- Another Site's Questions
- Fox, Sheep, Cabbage problem - revisited
- Light Switches
- High-voltage!
- a wicked master
- Google Labs Aptitude Test
- Parenthize
- How old are my daughters?
- tricky lockers...
- pyramids
- Feilds on the edge of town
- Fox sheep cabbage - mind emotions body
- [SOLVED] Two fat guys
- 5th grade brain teaser
- Sister probability
- Hydrogen Room
- the product
- Crack the code!
- 12 red snooker balls
- Ten Digit Numbers
- expert puzzle
- Doobie weigher
- Nine Digit Numbers
- Balls in boxes ( probability )
- Simple number game
- beans
- Forty 1lb Weights
- handshakes
- cultural groups
- blind man
- I lost my calculator batteries in a flood.....
- truth teller vs liar : go to Hell !
- Bridge Circuit
- Three-Dimensional Resistance
- Coloured Hats
- Infinite Ladder Network
- Math Problem
- From D to M, how far and what way
- Riddles!
- Teasing your brain
- 1+1= ?
- Two old men....
- Two Cubes in 3d
- Slice the Donut
- brownies
- Going off on a tangent.....
- Last geometry challenge (very difficult)
- A Geometry challenge
- center of mass
- Logic Problem – test your logic
- What does a soda cost?
- A rolling problem
- Read the mixed up words
- Philosophical Beliefs
- More Dice
- Box Clever
- fake coin #2
- fake coin
- the door story
- next door neighbours
- Medication problem
- Who owns the fish?
- riddle poem
- more strange words
- check or bet
- total distance
- How old are they?
- Strange words...
- Quickie
- What can you share yet still have all for yourself
- I live just over a star, and yet I do not burn
- Petals Around The Roses
- Row, Row, Row your boat...
- R = PI Ohms
- Flowers (hope this one lasts a bit longer)
- Scouts
- Drawing a path
- Crossing the desert (in a steam powered car)
- $60,000.00 question
- Hats
- Black's last move?
- Searching for a non-negative integer...
- Color of Bear Puzzle
- tiles
- Help
- Kind of Riddle
- 5 Star Logic Problem (100 prisoners and a light bulb)
- Paint mixing
- Canned Hams - quickie
- what came first?
- Shock absorber
- beer story
- Digging to China
- Math related riddle!!!
- Late for school?
- Rope clocks
- Impish Sprite
- d[x[sup]2[/sup]]/dx = x
- Triangle Puzzle
- riddle
- a wolf, a goat and cabbage
- Brian Teaser++++++++
- Quickie
- new riddle
- Hats Off to the Ministers
- Brain Teaser #98
- riddle
- lying about truth
- simple code
- Brain Teaser #94
- Brain Teaser #93
- Brain Teaser #92
- Brain Teaser #91
- Brain Teaser #90
- Help needed on a brainteaser
- Brain Teaser #89
- reTurn Time - 3
- Brain Teaser #87
- reTurn Time - 2
- reTurn the time
- Brain Teaser #84
- Brain Teaser #83 (and I promise there is only one right answer)
- Brain Teaser #82
- Brain Teasers Open to All
- Brain Teaser #81
- Brain Teaser #80
- Brain Teaser #79
- Brain Teaser #78
- Brain Teaser #77
- Brain Teaser #76
- Brain Teaser #75
- Brain Teaser #74
- Brain Teaser #73
- Brain Teaser #72
- Brain Teaser #71
- Brain Teaser #70
- Brain Teaser #69
- Brain Teaser #68
- Brain Teaser #67
- Brain Teaser #66
- Brain Teaser #65
- Brain Teaser #64
- Brain Teaser #63
- Brain Teaser #62
- Brain Teaser #61
- Brain Teaser #60
- Brain Teaser #59
- Brain Teaser #58
- Brain Teaser #57
- Brain Teaser #56
- Einstein's Intelligence Quiz ?
- Brain Teaser #45
- Brain Teaser #54
- Brian Teaser #53
- Brain Teaser #52
- Brain Teaser #51
- Logic puzzle
- Brain Teaser #50
- Brain Teaser #49
- Brain Teaser #48
- Brain Teaser #47
- Brain Teaser #46
- Brain Teaser #45
- Brain Teaser #44
- Brain Teaser #43
- Brain Teaser #42
- Brain Teaser #41
- Brain Teaser #40
- Brain Teaser #39
- Brain Teaser #38
- Brain Teaser #37
- Brain Teaser #36
- Brain Teaser #35
- Brain Teaser #34
- Brain Teaser #33
- Brain Teaser #32
- Brain Teaser #31
- Brain Teaser #30
- Brain Teaser #29
- Brain Teaser #28
- Brain Teaser #27
- Brain Teaser #26
- Brain Teaser #25
- Brain Teaser #24
- Brain Teaser #23
- Brain Teaser #22
- Brain Teaser #21
- Brain Teaser #21
- Brain Teaser #20
- Brain Teaser #19
- Brain Teaser #18
- Brain Teaser #17
- Brain Teaser #16
- Brain Teaser #15
- Brain Teaser #14
- Brain Teaser #13
- Brain Teaser #12
- Brain Teaser #11
- Brain Teaser #10
- Brain Teaser #9
- Brain Teaser #8
- Brain Teaser #7
- Brain Teaser #6
- Brain Teaser #5
- Brain Teaser #4
- Question #3
- Question #2
- Question #1
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