Brain Teasers



#1


A man has to get a fox, a chicken, and a sack of corn across a river. He has a rowboat, and it can only carry him and one other thing. If the fox and the chicken are left together, the fox will eat the chicken. If the chicken and the corn is left together, the chicken will eat the corn. How does the man do it?

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Man carries chicken, man leaves chicken and comes back, man gets fox, man leaves fox and gets chicken, man leaves chicken and gets corn, man leaves fox and corn to get chicken, man gets chicken.

#2


My wife's sister is also her cousin. How can this be?

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Your wifes mother married her husbands brother after her husband left the picture(either died or divorced). Then they had a child together, which would make her a half sister and a half cousin.

#3


1 train leaves from NYC heading towrards LA at 100 mph. three hours later, a train leaves from LA heading towrds NYC at 200 MPH. Assume there's exactly 2000 miles between LA and NYC. When they meet, which train is closer to NYC?

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When they meet, they're both at the same spot, so they are both the same distance from NYC..

#4


If there are fifteen crows on a fence and the farmer shoots a third of them, how many are left?

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Zero crows are left. The crows all flew away when they heard the farmer shooting his gun.

#5


The owner of the local bank found a $50 bill lying in the gutter; he picked it up and made a note of its serial number. Later that day his wife mentioned that they owed the butcher $50, so the banker used the bill he'd found to settle up with the butcher. The butcher used it to pay a farmer; the farmer in turned used it to pay his feedstock supplier; and the feedstock supplier used it to pay his laundry bill. The laundryman used it to pay off his $50 overdraft at the local bank. The banker recognized the bill as being the one he had found in the gutter, but als noticed, on closer examination, that it was a fake. By now, it had been used to settle $250 worth of debts. What was lost as a result of this series of transactions, and by whom?

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Since the counterfeit note was used in every transaction, they are all invalid. Therefore, everybody stands in the same position to his/her creditor as before the banker picked up the counterfeit note.

#6


If TEN = 20 - 5 - 14; and MEN = 13 - 5 - 14; what do WOMEN equal by the same logic?

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Women equal 23-15-13-5-14. The numbers represent the position of each letter of the word in the alphabet: ie.,A=1,B=2, and so on.

#7


George did not have a wristwatch, but he did have an accurate clock. However, he sometimes forgot to wind his clock. Once when this happened, George went to his sister's house, spent the evening with her, went back home and set his clock. How could he do this without knowing beforhand the length of the trip?

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When George lefy his house, he started the clock and wrote down the time it then showed. When he got to his sisters house he noted the time when he arrived and the time when he left. He thus knew how long he was at his sister's house. When he got back home, he looked at the clock, so he knew how long he had been away from home. Subtracting from this the time he had spent at his sister's house, he knew how long the walk back and forth had been. By adding half of this to the time he left his sister's house, he then knew what time it really was now.

#8


Ahoy, blow, chin, defy, erst, flux, gist, hint, imps, know, lops, most. Twelve reasonably common words. Apart from all having four letters, what do they have in common? Can you provide a five-letter word having the same property? And a six-letter one???

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The words all have their letters occurring in alphabetical order. A similar five-letter word is BELOW, and ALMOST is a six-letter one.

#9


I have two children. At least one of them is a boy. What is the probability that both my children are boys? My sister also has two children. The older child is a girl. What is the probability that both her children are girls?

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Since I have two childern, at least one of which is a boy, there are three equally probable cases: Boy-Boy, Boy-Girl or Girl_Boy. In only one case are both childern boys, so the probility that both are boys is 1-3. My sisters situation is different. Knowing that the older child is a girl, there are only two equally probable cases: Girl-Girl or Girl-Boy. Therefore the probability that both childern are girls is 1-2.

#10


A mixed packet of nuts contains 1 pound of walnuts and 2 pounds of Brazil nuts. It costs exactly $2. A packet containing 4 pounds of filberts and 1 pound of walnuts costs $3. And for only $1.50, you can buy a mixed packet of 3 pounds of almonds, 1 pound of walnuts, and 1 pound of filberts. How much should you pay for a mixture of 1 pound of each of the four kinds?

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It is impossible to work out the cost per pound of each of the different nuts. However, the cost of various combinations can be worked out. If you combine 1 packets of the first kind ($3) with packet of the second kind ($1.50) and all of the third packet ($1.50), you get 3 pounds of each for $6. A mixture of 1 pound of each, therefore, should cost you $2.

#11


The same four-letter word can be added to each of the following words to make a new word or a common phrase. What is the word? BOUND PROOF TREE LESS BIRD

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Rain

#12


A woman has planted some flowers of three different kinds. There are roses, tulips, and daisies. How many flowers do I have if all of them are roses except two, all of them are tulips except two, and all of them are daisies except two?

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There is 1 of each one!

#13


A bartender watches a man as he enters his bar. The man comes up to the bartender and asks for a drink of water. Instead of giving the man a drink of water, the bartender pulls out a gun and points it at the man. The man replies "Thank you.", and exits the bar with a satisfied look on his face. The bartender, also with a satisfied look, puts his gun away and returns to work, as if nothing unusual has happened. Why did the man enter the bar in the first place?

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The man who entered the bar had the hiccups. The man entered the bar with the hiccups, and asked for a drink of water in an attempt to get rid of them. The bartender, noticing that the man had the hiccups, decided to scare the man in order to help cure the man's hiccups, and did so by pulling a gun on him. Once the man got scared and then regained his senses, he no longer needed the water, since he no longer had the hiccups. The man then thanked the bartender for his help and left the bar.

#14


The Lone Ranger rode into town on Friday. He stayed 5 consecutive days and left on Friday. How could this be?

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Friday was his horse!

#15


A genius came to a narrow railroad bridge and began to run across it. He had crossed 3/8 of the distance when a whistle behind him warned of an approaching train. Being a genius, he instantly evaluated his alternatives. If he were to run back to the beginning of the bridge at his speed of 10 mph, he would leave the bride at precisely the moment the train entered it. If he kept on running to the end of the bridge, the train would reach him just as he left the bridge. At what speed was the train moving?

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40 mph

#16


97 baseball teams participate in an annual state tournament. The way the champion is chosen for this tournament is by the same old elimination schedule. That is, the 97 teams are to be divided into pairs, and the two teams of each pair play against each other. After a team is eliminated from each pair, the winners would be again divided into pairs, etc. How many games must be played to determine a champion?

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96. Since there are 97 teams, 1 team loses each game and you want to end up with one remaining team, you just hav 1 losing team 96 times and have the remaining one team left. Similarly, if you want to have 7 teams undefeated, you play 90 games.

#17


In your cellar there are three light switches in the OFF position. Each switch controls 1 of 3 light bulbs on floor above. You may move any of the switches but you may only go upstairs to inspect the bulbs one time. How can you determine the switch for each bulb with one inspection??

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Turn switch 1 on for a while, about 5 mins or so, then turn it off. Turn switch 2 on then go to inspect. The hot bulb is controlled by switch 1, the lit bulb is controlled by switch 2, the unlit and cold bulb is controlled by switch 3.

#18


What number is two-thirds of one-half of one-fourth of 240?

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20

#19


A certain family party consisted of 1 grandfather, 1 grandmother, 2 fathers, 2 mothers, 4 childern, 3 grandchildern, 1 brother, 2 sisters, 2 sons, 2 daughters, 1 father-in-law, 1 mother-in-law, and 1 daughter-in-law. A total of 23 people, you might think. But, no; there were only ?????? how many people? And How?

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7, The party consisted of 2 little girls and a boy, their father and mother, and their father's father and mother.

#20


There is a five letter word. It becomes shorter when you add 2 letters to it. What is this five letter word?

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Short

#21


What is at the beginning of eternity, the end of time, the beginning of every end, and the end of every place?

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"e"

#22


What word starts with is, ends with nd, and has LA in the middle?

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Island

#23


An Arab sheikh tells his two sons to race their camels to a distant city to see who will inherit his fortune. The one whose camel is slower will win. The brothers, after wandering aimlessly for days, ask a wise man for advise. After hearing the advice they jump on the camels and race as fast as they can to the city. What does the wise man say?

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The wiseman tells them to switch camels.

#24


Use the digits 1, 2, 3, 4, 5 and 6 once only, in this multiplication sum to make it correct. ? ? x ? ------- ? ? ?

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54 x3 ----- 162

#25


At our sleepover last weekend, I bet my friends during our midnight feast that the weather in exactly oneweek's time would not be sunny. I can't wait to take their pocket money off them. How can I be so sure?

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Because in exactly one weeks time from the midnight feast it will again be midnight, the sun will not be shining!

#26


A man meets two men at two doors. A sign above the two doors says, "One door leads to eternal bliss, while one leads to certain peril. One of these men always lies, while one always tells the truth." You may ask only one question. What question do you ask to be certain that you get to the room with eternal bliss?

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You ask either one,"Which door would the other say is the door that leads to eternal bliss?" Either way, go through the opposite door the man says.

#27


Mary promised Kay today that she will tell Kay a big secret on the day before four days from the day after tomorrow. If today is Saturday the 12th, on what day and date will Mary tell Kay her big secret?

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Thursday the 17th

#28


If you were to put a coin into an empty bottle and then insert a cork into the neck, how could you remove the coin without taking out the cork or breaking the bottle?

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Simply push the cork into the bottle and shake the coin out.

#29


Ok, imagine a large empty bin with. Say that each minute people would come and put in one golf ball a piece. The first minute(Starting at 12 noon), 1 person came and put in a ball. The second minute, 2 people put in one ball a piece. A minute later, 4 people put in 1 ball a piece. This pattern continued until the bin was exactly full at 6 pm. At what time was the bin half empty?

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5:59...Because each minute, the number of balls double!

#30


With thieves I consort, With the vilest, in short, I'm quite at my ease in depravity; Yet all divines use me, And savants can't lose me, For I am the center of gravity. Who or what am I???

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The Letter V

#31


A lily pad doubles in size every day. If on the 60th day the pond is filled with the lily pad, on what day is the pond only half covered?

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The 59th day. It doubles every day, and if the pond is half full on the 59th day, then it is filled on the 60 th day.

#32


The same five letters can be anagrammed into four different words to fill in the blanks in the sentence to make (somewhat) good sense. What are the missing words? The farmer with hundreds of _ _ _ _ _ , deeply _ _ _ _ _ about the amount of rainfall, and _ _ _ _ _ around with artificial watering systems when the ground is dry enough to _ _ _ _ _ him about the possibility of crop failure.

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ACRES, CARES, RACES, and SCARE are the missing anagrams.

#33


A ship is at anchor. Over the side hangs a rope ladder with rungs a foot apart. The tide rises at a rate of 8 inches per hour. At the end of six hours, how much of the rope ladder will remain above water, assuming that 8 feet were above the water when the tide began to rise?

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Since the ship is afloat, the water level in relation to the ship stays the same. Therefore, 8 feet are above water, just as the beginning!

#34


How many common four letter English words can you make from the letters EANM using all the letters in each word?

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MANE,MEAN,AMEN, and NAME

#35


I am a word of 11 letters My 7,3,8,4,5 is what the little girl did when her cat died. My 9,10,6,2 is an obsuring smudge. My 1,11 is an abbreviation for that is. My whole is as little as it can get. What am I?

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Cried,blur,i.e.;irreducible

#36


A man has recently escaped from prison and is making his way home on foot. He is walking along a straight rural country lane in bright daylight. He has walked about two miles from the prison, when he sees a police car coming toward him. Despite knowing that all squads would be out looking for him, he ran towards the car for a short while, and only when he was about ten feet away, did he turn and run into the woods to hide. Why did he run towards the police car?

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The man is on a bridge when he spots the police car. He's more than halfway across, so the quickest way off the bridge is to run forward.

#37


In 1990, a person is 15 years old. In 1995 that same person is 10 years old. How is this possible? Yesterdays Solution

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The dates are in BC.

#38


Each of these words can be changed into something edible by scrambling the letters and making a new word. How much of a meal can you produce from these anagrams? PLAYERS SANDIER ASSUAGE BARELY

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PARSLEY SARDINE SAUSAGE BARLEY

#39


A snail is at the bottom of a well 30 feet deep. It crawls up 3 feet each day, but at night, it slips down 2 feet. How long does it take for the snail to crawl out the well?

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28 days. Once it reaches the top, it does not slip down 2 feet.

That's All Folks !
I Hope You Enjoyed Them !



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