# Mindbender Anwers

Well most of them... and some you will see are disputed. So if you have a valid alternative explanation (or just feel somebody's explanation is wrong!) email us and we will include your answer.

1

Without lifting pen from paper join these dots with four straight lines:

## Answer submitted by Mike Bosch

2 A man and his son were admitted unconscious to a local Casualty (Accident and Emergency) department after a car crash. The Casualty Doctor on duty took one look at them and said that they although they had the skills somebody else would have to deal with them. Why was this?

### The Doctor was his wife.

3 You have nine ball-bearings, all of the same size but one slightly heavier than the others, though not enough to be detected by holding them. You have some balance scales and are allowed to do only two weighings of any number of ball bearings. How do you find the heavy one?

Alternative:

## Sent in by Garrett Roberts

4 So you can spell coke, joke, poke but how do you spell the white of an egg?

## Sent in by Renai McLean

5 Name a commonly used used four-letter word ending in E-N-Y (If you find this easy it is because you are seeing it writing. Try it on someone verbally and see them suffer)

### Deny... it if you can!!

6 A farmer has to transport a fox, a goose and a sack of grain across a river. The boat is so small that there is room only for him and one of the others at a time, but if he leaves the fox and goose together the fox will kill the goose, and if the goose and the sack of grain are left together the goose will eat the grain. How does he get them all over?

Alternatives

### Geese can swim so takes fox over first goose tethered and swimming behind each journey, returns picks up grain. (2 Journeys)Fox and grain in boat, both farmer and goose swim, farmer pushing boat. :-) (1 Journey!!)

7 Place three silver coins and three copper coins in a row like this:

Moving only two adjoining coins at a time can you in three moves, change it to this:

### Emphasis on 'adjoining' and not to think too laterally!!

8 A water lily growing in a circular pond doubles in size every day. It takes thirty days to cover the whole pond. How long does it take to cover half the pond?

### 29

9 There was a good job going in the office and the boss could not decide which of the three candidates should have it, each of them being worthy of it and all of them very bright indeed. So he set them a problem and the one who solved it would get the job. He showed them five discs, three black and two white and said: ‘I’m going to put a disc on the forehead of each of you. You will be able to see the others discs but not your own. There will be no talking. By pure deduction you will have to work out what colour disc you have, and the one who does so gets the job.’ He withheld the two white discs and put a black one on each of them. After a time one of the men stepped forward and successfully claimed the job. How did he figure out that he had a black disc on?

### Call the candidates A, B and C... A gets the job through the following reasoning:- If I had a white disc, then B would have gone into the office already, because he would have figured to himself,

"Well, I(B) can see A has white, which means if I(B) had white also, by now C would have figured that he can see two whites, that automatically makes me a black, so I must have the black marker because C isn't doing that."

## Sent in by Robert Ehrlich

10 Spot the error in this: ‘There was a taxi outside a hotel. A man came out, hit the taxi driver on the head, took all the money out of the meter and started to run off, only to be rugby-tackled by the commissionaire.’

## Sent in by Renai McLean

11 If you divide £100 between a certain number of people, how many people are there and how much does each get? (Study the question, the answer is there.)

## Sent in by Renai McLean

12 Driving one stormy night from Birmingham to a small town he had never visited before, a motorist is lost when he comes to a deserted crossroads. Unfortunately the wind had blown the signpost right out of the ground, but being a bright chap he figures out which is the right road to take. How does he do it?

## Sent in by Robert Ehrlich

13 Another motorist equally lost came to a fork in the road. There was no signpost so he had to ask at a house which was the correct fork to take him to his destination. In the house were two brothers, one of whom always told the truth and other who always lied. When one of them (he didn’t know which) came to the door he could ask him only one question. What is the single question he could ask which would ensure he found out the right road?

## Sent in by William Volterman

14 When Gilbert was eleven his mother put him into an orphanage. True or false?

## Alternative by Trista Star

15 A person who picks up cigarette butts from the streets finds that he can roll a new cigarette from the tobacco of seven butts. One Saturday he picks up forty-nine butts and on the Sunday decides to smoke all the cigarettes he can make from them. How many cigarettes did he smoke?

### 8 (He makes 7 new cigarettes from the 49 butts found, but after smoking these this creates 7 new butts so he can make another one.)

16 ‘The vicar chose The Immaculate Conception as the theme for his sermon. He spoke fascinatingly on this subject of the birth of Christ. A total of £12.40 was taken at the collection afterwards.’ What is wrong with that?

## Sent in by Renai McLean

### Original sin is the idea that the sinful choice Adam made in the Garden of Eden is inherited at conception by everybody born and can only be removed by the sacraments of the church. From this arose the concept of Mary's immaculate conception. By God's choice Mary did not inherit the original sin in order that she be a suitable mother for Jesus.

17 Supposing you are captain of a ship and it has three red funnels and it leaves New York on a Tuesday and gets to Southampton on Saturday and on the return trip reaches New York on Thursday, what is the name of the captain of the ship.

All right, you got it but try it on one person - not a group, otherwise someone will cotton on - it’s astounding that you can repeat it over and over again and your victim still won’t get it.

### You

18 An elm tree was swaying in the wind. It had eight branches and on each tree branch were eight acorns. The wind blew an acorn off each branch. How many are left?

## Sent in by Robert Ehrlich

19 A middle-aged brother and sister were host and hostess at a party. A youth pointed to them and told someone that the host was his uncle. ‘I think your aunt is a charming person.’ Said the other. ‘That’s not my aunt.’ Said the young man. How come?

## Sent in by Robert Burbidge

20 There is a rope ladder hanging over the side of a ship. Each of the rungs of the ladder are a metre apart. The tide rises at the rate of 80 centimetres an hour. How many rungs are covered after four hours?

### The same as before... the ship floats so rises with the tide.

21 A boy who lived on the twenty-first storey used to go down in the lift each morning to go to school and when he came home he would take the lift up to the tenth floor and walk the rest. Why?

## Sent in by Robert Ehrlich

22 Here’s one for racing experts: what’s the longest race in the flat season?

### BUT the longest UK race in the flat season is the four-and-a-half mile long Grand National in April.

23

Move one short line to make this correct:

5 + 5 + 1 = 546

Alternatives:

## Sent in by Matthew Dakin

24 The border between Canada and the United States consists mainly of the 49th Parallel. If a Canadian airliner were to crash exactly on the parallel, in which country would the survivors be buried? (If you think about this for more than five seconds you have been taken in!)

### survivors wouldn't be buried...

25 What is the frequently used English word containing these letters, just like this: OOKKEE

## Sent in byRichard Givens

26 A woman had triplets in July and twins in August - in the same year. How could that be possible?

Alternatives:

## Answer posted by Melanie Watt

27 Generally speaking, birds lay their eggs in nests up in trees or down at ground level. Where do peacocks lay theirs?

### Peacocks do not lay eggs, Peahens do.

28 In the Records Office in London there are numerous documents headed "Proclamations of His Majesty King George I" published shortly after he came to the throne.’ That couldn’t be so. Why not?

## Sent in by Robert Gowland)

29 A youth said: ‘The day before yesterday I was fourteen. Next year I’ll be seventeen.’ On what day was he speaking and when was his birthday? (No this has nothing to do with Leap Year)

## Sent in by Renai McLean)

30 Continue the sequence:

192
021
222
324
252
627
2….?

Alternatives

## Sent in by Robert Gowland

### if you look at the pattern of the numbers you see that we start with 192 then 021 then 222. looking in a diagonal direction going down and left we see a pattern emerging. 1, 90, 222, 123, 222, 456, 222, 789, 222, 012, 222, 345, 222. the sequence continues the pattern every second time.

31 How to get the better of someone who thinks he knows everything about cricket! Ask him how many counties there are in the County Championship.

## (Source Essex County Cricket Club http://www.essexcricket.org.uk/)

Alternative: a bit of lateral thinking

## Answer posted by Melanie Watt

32 A silly one! There is a drain-pipe lying in the road. It is fifteen feet long. A squirrel pokes its head in at one end and then runs around and pokes its head in at the other end. If this takes six seconds and it doubles in speed each trip, how many trips will it have to make before it is poking its head into each end of the drainpipe at the same time?

## Sent in by Stuart Herring, London

33 Which State returns a "Nil Births" every year

### Vatican State in Rome.

34 Man has 7 neck vertebrae, how many does a giraffe have?

### 7 !! - The giraffe's long neck has the same number of neck vertebrae (7) as most mammals, but they are greatly elongated.

35 What predominant colour is a peacock’s egg?

### As with Question 27: Peacocks don't lay eggs

36

DONALD
+GERALD
=ROBERT

If D = 5 What are the rest?

### 526485 +197485 =723970

37 Circles or spiral?

## Sent in by Melanie Watt

(Ed: true, but follow the line they make...)

38

You are in the army. You are standing at a gorge which is crossed by a rope bridge. It is pitch black and you only have one torch. You know the bridge is going to blow up in 17 mins and you have to get your 3 men and yourself across the bridge in 17 mins before the bridge blows.

You take 1min to cross the bridge.
X takes 2 mins to cross
Y is overweight and takes 5 mins to cross
Z is injured and takes 10 mins to cross.

The rope bridge can only support the weight of two men at any one time. One of you must always return with the torch as it is impossible to cross the bridge if you can't see. Whoever crosses always takes the time of the slowest persons as you have to help them.

How do you save all you team and do it??

## Sent in by Mike Bosch

39 Using only three straight lines connect these nine dots, without lifting pen from paper or crossing over another line.

Alternative

## Sent in by George Crofts

40

You want to send a valuable object to a friend. You have a box which is more than large enough to contain the object. You have several locks with keys. The box has a locking ring which is more than large enough to have a lock attached. But your friend does not have the key to any lock that you have.

Note that you cannot send a key in an unlocked box, since it might be copied. How do you do it?

## Sent in by Mango

41 (Variation on question 23)
Remove one short line to make this correct:

5 + 5 + 1 = 546

## Sent in by Melanie Watt

42 A woman went to visit her bank manager and she took her young daughter with her. The bank manager said that the woman's daughter could stay with his secretary during the meeting. When the woman and her daughter left, the secretary turned to another secretary and said to her: 'That little girl was my daughter.' How could that be?

### The secretary was the girl's father.

43 You have two traditional hourglass type egg timers. One takes seven minutes for the sand to run through, the other takes 11 minutes. You want to boil an ostrich egg for exactly 15 minutes. How do you do it? and how soon after the start of the whole process will the egg be ready?

Alternative

## Submitted by Linda Ostlie

44

Some silly questions for you, but you need to know a bit about physics to work these out.

a) Mad Professor Zweistein has managed to build a car that has an unlimited to speed and incredible breaks that allow it to stop instantly. He only has one problem, the car is seven metres long and his garage can only accomodate a six metre car. How fast does Professor Zweistein need to drive the car so that it will fit into the garage and when does he need to apply the breaks?

b) During his attempt to get his car into the garage, Professor Zweistein is caught by a red light camera for driving through an intersection while the light was red. In court Zweistein defended himself by saying that at the speed he was travelling the red light from the traffic light actually looked green (due to the doppler effect). Being a physics buff himself, the judge decided to take Professor Zweistein at his word. If the standard rate is \$1 per km above the speed limit of 60 km/h, how much was the speeding fine issued by the judge to Professor Zweistein?

## Lee Loveridge, PhD

45 You are trapped in the middle of a frozen lake that is so smooth that there is absolutely no friction so there is no way you can grip the ice. There is also no wind to propel you along. The only thing you have on you is a mobile phone, but unfortunately it has no reception so you can't call anyone for help. How do you get off the ice before you freeze to death?

### Quite simple really, throw away the mobile phone and while it glides off in one direction, the kick from the throw will propel you in the opposite direction (while the kick from a throw is not quite as large as the kick from firing a gun, it is still effective enough). Since the ice is frictionless you won't stop until you reach the shore. Then you can always walk around or take a run up and slide back across the lake to collect your phone.

46 A butcher is 5' 10".  What does he weigh?

### Meat!

47 There are 2 fathers and 2 sons sitting round a table. How many people are there?

Alternatives

## Sent in by Kaitlyn

48 Which English place name (also the name of a London tube station) contains 6 consecutive constantans?

### Kni(GHTSBR)idge

49 What is?

YYURYYUBICURYY4ME

### "Too wise you are too wise you be I see you are too wise for me."

50 How many triangles?

## David Yeck SWAP YFC/ Campus Life

51 Every other day, a cyclist rides a bicycle over the border between the border of the US and Mexico. a policeman always checks his satchel, but it holds nothing but a water bottle. Yet, he is smuggling something between the two countries. What is it?

### Bicycles!

52 There is a man who goes home one day, to see about answering his e-mail, when he sees Myrtle lying on the floor, dead. There is broken glass, and a large quantity of water on the floor. What happened?

### The broken glass is the fish bowl and Myrtle is a fish.

53 Two men were found in a cabin in a hillside, dead. What happened? (Believe me, there is an answer to this riddle.)

## Sent in Trevor Pugh

54 Can you complete the following common phrases
e.g. "7 C of the R" = 7 Colours of the Rainbow 4 = G in A C C (C D)

25 = S of F

18 - Y R (C T - B D)

3 = L in a H

1 = F H H

7 = S R of F N

18 = W A B

1 = S in the K of G M

## Sent in by Laura Krzyston

55 There is a man, who goes down into a room every day to check on his frozen meat, to make sure it doesn't thaw. One day, however, he is killed inside the room. No one else entered the room (aside from himself), and there is a trace of moisture on the floor. The authorities are baffled. Two questions: What kind of room was it, and, what killed him? (Note, he did not commit suicide.)

Alternate

## Sent in Melanie Watt

56 I was going over to visit my friend, Alfred, when I found him dead at his desk. There was a tape recorder on his desk. I pressed 'play' on the device, and found he was saying,"...A man just telephoned he was going to come over in 1 minute to kill me. I have no alternative, but to submit..." Suddenly, on the tape, there is a shot and a thud. However, I knew that the person who made the recording was not Alfred, but the killer! How did I know? (Use logic, please.)

## Sent in by Rick Geatrell

[Ed: but the statement does not say the tape had stopped after the 'thud' this is only a presumption... what would be the answer if the tape had been voice activated with auto stop or had just kept on running?]

### "I have reviewed my answer, and would now say that there is another answer. When he started the tape player, he heard his friend immediately, which means the tape player must have been rewound to the beginning, which must have been done by the murderer."

... or it could just be that being his friend you recognise it as not being his voice. btw: Why is Alfred talking to a tape recorder. Why was he not phoning the police?

## Sent in by William Volterman

57 What is black when you buy it, red when you use it, and grey when you throw it away?

### Coal

58 An electric train is heading north at 60 mph. If the wind is blowing west at 30 mph, what direction is the smoke blowing?

### What smoke? Electric! Duh

59 Divide 500 in half. How many times do you divide the dividend(?) before it reaches 0?

## Sent in by D Judson, University of Brighton

60 What number is actually possible to divide in half to create (key word!) zero?

## Sent in by Alfred Jones

61 Three brothers shopping for a TV walk past a shop and see a TV on sale for £30!. Bargain they think only £10 each as they always share the cost equally. So in they go to buy the TV, when they get to the assistant to purchase the TV. He informs them that they are the 1000 customer of the day and qualify for £5 discount!!!. so the brothers all hand the assistant £10 each, the assistant the goes to hand the brothers there £5 pound change, "oh we share things equally" says one brother, so they all agree to take back £1 each and tip the assistant the remaining £2.

However if the brothers all handed over £10 each but received £1 discount, then they only spent £9 each...so in total they spent 3x9 = £27 and tipped the assistant £2, but 27+2 only equals 29??? were did the other £1 go!!!

## Sent in by Tini Garske

62 2 sons and 2 fathers go fishing. They each catch one fish. The total number of fish they caught was 3 fish. How is this possible?

### It is a grandfather, a father, and a son. The father is a son to the grandfather, and a father to the son.

63 A man wakes up in the middle of the night and wants a snack, so he goes downstairs, gets out a sandwich and a glass of milk from the refrigerator. He eats the sandwich and drinks the milk, then turns out the lights and goes to bed. In the morning, there are dead people on his lawn. Why?

### It was never said that he turned on the lights. The man lives in a lighthouse, so when he turned off the light, the people in the boats couldn't see and sailed into a cliff.

64 What starts on four legs, then on two, then on three?

### A human! A baby crawls, a kid walks, and when you get old, you have a cane!

65 AEEOEEIEUE... what is the next letter?

## Sent in by Anne Gibbons

66 A king is searching for a suitor for his daughter, so he collects the three smartest men in town. He sits them in a circle and tells them he is going to put a red mark or a white mark on each of their heads while their eyes are closed. He puts a red mark on all three and tells them to open their eyes. He then asks them if they see a red dot then they should raise their hand. They all raise their respective hands. He then says that if you know the color dot that is on your forehead, then stand up. After a few minutes one man stands and says the correct color. How does he know?

### If the man that stood up had a white dot on his head, then one of the other two men would have stood up immediately because they would have realized that they each had a red dot and both of them raised their hands. The key part to this mindbender is that they are all smart men, and that their was a pause before the man stood up.

67 A man is standing in front of three light switches and then there is a shut door. He is only allowed to go through the door once and there he will see three light bulbs. By turning any light bulbs on or off the man must be able to know which light switch goes with which light bulb. E.g. He can turn two on and know which switch is for the unlit bulb but will remain uncertain about the other two.

### He turns one on, leaves it for ten minutes and then turn it off. Turn another on and walk in. One light bulb will be on, one off and one off and hot!

68 A man is pushing his car across London. He eventually arrives outside a hotel in Park Lane and there discovers he has become bankrupt. How has this happened?