Find Lighter Coin Puzzle
87.4K Views
In front of you, there are 9 coins. They all look absolutely identical, but one of the coins is fake. However, you know that the fake coin is lighter than the rest, and in front of you is a balance scale. What is the least number of weightings you can use to find the counterfeit coin?
Your Answer
More puzzles to try-
Which way does the smoke blow?
If an electric train is going 150 miles per hour north and the wind is blowing the same south, which ...Read More »Missing Letters
Find the missing letters which complete the group. B, C, D, E, ?, P, T, ?Read More »Divide The Number
Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 ...Read More »Ratio of Boys and Girls in a Country where people want only boys
In a country, All families wants a boy. They keep having babies till a boy is born. What is the ...Read More »PuzzleFry’s Magical Land puzzle
On puzzleFry’s magical-intellectual land, all the animal are rational(real smart). There are six leopards and one sheep. Leopard can eat ...Read More »Which does not fit into the pipe?
Your last good ping-pong ball fell down into a narrow metal pipe imbedded in concrete one foot deep. How can ...Read More »What is written in the image?
Can you read what is written in the image? Can you fry this puzzle in First attempt?Read More »Table to eat
What kind of table is good for you to eat?Read More »Maximum count puzzle
A fast food restaurant sells chicken in orders of 6, 9, and 20. What is the largest number of pieces ...Read More »GREAT STRATEGY CAN ONLY SAVE LIFE
Three cannibals and three anthropologists have to cross a river. The boat they have is only big enough for two ...Read More »Can you start the fire?
Can you start the fire using two pieces of wood?Read More »Do you see two faces or a vase?
Do you see two faces or a vase? opRead More »Least time to toast the bread puzzle
It takes ten minutes to toast a bread (five minutes for each side). You are toasting the bread in a ...Read More »How is this possible?
A man and his boss have the same parents, but are not siblings. How is this possible?Read More »Who is alive and who is dead riddle
Fred, Bob and John stumble across a magic lamp. A genie pops out and grants them each the opportunity to ...Read More »Detective Rockford Murder Puzzle
Detective Rockford was jogging near the beach at 4:30 am. He hears a sound near the shack “No Michael, Please ...Read More »Solve the Equation
1 + 9 + 8 = ? considering, 28 + 8 + 92 = 10Read More »Random point in a circle
You’re given a procedure that with a uniform probability distribution outputs random numbers between 0 and 1 (to some sufficiently ...Read More »What time is it?
The number of hours left today is half of the number of hours already passed. What time is it? A. ...Read More »Shopping 100 chocolates puzzle
You must buy 100 Chocolates for exactly $100, and purchase at least one Chocolates from each store. The first store ...Read More »
Accenture Interview PuzzlesAdobe Interview PuzzlesAge RiddleAkbar Birbal PuzzlesAlgorithm PuzzlesAlphabet riddleAmazon Interview PuzzlesAnalytical MathematicsAptitude PuzzleBank PuzzlesBetting PuzzlesBrain TeasersCalendar PuzzlesCards PuzzlesChess Board PuzzleChess PuzzlesChristmas Puzzlecipher PuzzleCivil Services PuzzleClock time puzzleCognizant Interview PuzzlesCoins PuzzleComputational PuzzleconundrumCoronavirus PuzzleCoupondunia Interview PuzzleCritical Thinking Puzzledata analyticsData Structure Interview QuestionsDecode PuzzleDetective PuzzlesDice PuzzleDictionary Riddlesdifficult riddleEasy Math puzzlesEasy puzzlesEinstein puzzleEnglish RiddleFamily Tree Puzzlefamous puzzleFill in the blanks riddlesFinding Killer RiddlesFlipkart interview puzzlesFunny RiddlesGeneral KnowledgeGeographical PuzzleGoogle Code Jam 2014Google Interview PuzzlesGRE PuzzleHard Puzzle