# Math Is Fun Forum

Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫  π  -¹ ² ³ °

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## #76 2008-08-07 09:12:10

careless25
Real Member
Registered: 2008-07-24
Posts: 560

### Re: Brain Teasers

16)What word is indicated from the clues below?
The bottom of the heap,
The end of the line,
The first of all,
The center of artichoke,
The beginning of the end.

17)What number should continue the series?
4 7 9 8 7 5 6 9 5 7 5 ?

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## #77 2008-08-07 14:47:48

ZHero
Real Member
Registered: 2008-06-08
Posts: 1,889

### Re: Brain Teasers

If two or more thoughts intersect, there has to be a point!

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## #78 2008-08-08 08:14:10

careless25
Real Member
Registered: 2008-07-24
Posts: 560

### Re: Brain Teasers

Great Zhero!

Try this:

18)
What three positive numbers sum is equal to their products?
In other words i mean

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## #79 2008-08-08 09:04:21

ZHero
Real Member
Registered: 2008-06-08
Posts: 1,889

### Re: Brain Teasers

If two or more thoughts intersect, there has to be a point!

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## #80 2008-08-08 09:07:17

careless25
Real Member
Registered: 2008-07-24
Posts: 560

Right Again!

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## #81 2008-08-09 08:52:58

careless25
Real Member
Registered: 2008-07-24
Posts: 560

### Re: Brain Teasers

19)
http://www.2shared.com/file/3734218/db839598/que.html
Tryin uploadin for the first time. Tell me if there is any problem.

Last edited by careless25 (2008-08-09 08:54:49)

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## #82 2008-08-09 09:02:24

careless25
Real Member
Registered: 2008-07-24
Posts: 560

### Re: Brain Teasers

20)

1 There are 5 houses in five different colors.
2 In each house lives a person with a different nationality
3 These five owners drink a certain drink, smoke a certain brand of cigar and keep a certain pet.
4 No owners have the same pet, smoke the same brand of cigar nor drink        the same drink.

The question is, who owns the fish?

Hints:

1  The Brit lives in the red house
2  The Swede keeps dogs as pets
3  The Dane drinks tea
4  The green house is on the left of the white house
5  The green house owner drinks coffee
6  The person who smokes Paul Mall rears birds
7  The owner of the yellow house smokes Dunhill
8  The man living right in the center drinks milk
9  The Norwegian lives in the first house
10 The man who smokes Blends lives next to the one who keeps cats
11 The man who keeps horses lives next to the man who smokes Dunhill
12 The owner who smokes Bluemaster drinks beer
13 The German smokes Prince
14 The Norwegian lives next to the blue house
15 The man who smokes Blends has a neighbor who drinks water.

Einstein wrote this quiz last century. He said that 98% of the world
could not figure it out.:P:lol:

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## #83 2008-08-09 09:14:05

careless25
Real Member
Registered: 2008-07-24
Posts: 560

### Re: Brain Teasers

21)
This is an excel file so u will hav to download it.
After opening the link scroll down to the end of the box and at the bottom right corner it should say save file to PC: click here. Click on it and download.
http://careless25.t35.com/files/

Last edited by careless25 (2009-02-18 03:00:45)

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## #84 2008-08-09 10:02:35

mathsyperson
Moderator
Registered: 2005-06-22
Posts: 4,900

### Re: Brain Teasers

Question 20 is on this site, and quite a few people have joined just to check their answer for it.

Why did the vector cross the road?
It wanted to be normal.

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## #85 2008-08-10 00:57:20

careless25
Real Member
Registered: 2008-07-24
Posts: 560

### Re: Brain Teasers

Excellent Mathsyperson!
I think many have tried question 21 too. Its from MENSA, they released it a few years back.

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## #86 2008-08-10 09:49:07

integer
Member
Registered: 2008-02-21
Posts: 79

### Re: Brain Teasers

careless25
Full Member

wrote
"Einstein wrote this quiz last century."

Could you cite the source that attributes this puzzle to Einstein?

This is shown by WIKIPEDIA

http://en.wikipedia.org/wiki/Zebra_Puzzle

Zebra Puzzle
From Wikipedia, the free encyclopedia
Jump to: navigation, search
The Zebra Puzzle is a well-known logic puzzle.

It is often called "Einstein's Puzzle" or "Einstein's Riddle" because it is said to have been invented by Albert Einstein as a boy. Some claim that Einstein said "only 2 percent of the world's population can solve it". It is also sometimes attributed to Lewis Carroll. However, there is no known evidence for Einstein's or Carroll's authorship.

There are several versions of this puzzle. The version below is quoted from the first known publication in Life International magazine on December 17, 1962. The March 25, 1963, issue contained the solution given below and the names of several hundred solvers from around the world.

Last edited by integer (2008-08-19 21:17:47)

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## #87 2008-08-10 12:45:27

careless25
Real Member
Registered: 2008-07-24
Posts: 560

### Re: Brain Teasers

integer i was forwaded the puzzle and copied and pasted it here, but if u search "Who Owns The Fish?" in google you will have millions of hits saying by Albert Einstein.

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## #88 2008-08-10 13:49:14

John E. Franklin
Member
Registered: 2005-08-29
Posts: 3,588

### Re: Brain Teasers

ZHero&careless, there is a tiny mistake in the hourglass thing.
You don't have to flip it over when the 11 one ends, just start the egg.
Because 2 minutes of sand are in the bottom and 7 are in the top already.

igloo myrtilles fourmis

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## #89 2008-08-10 14:18:06

ZHero
Real Member
Registered: 2008-06-08
Posts: 1,889

### Re: Brain Teasers

John E. Franklin wrote:

ZHero&careless, there is a tiny mistake in the hourglass thing.
You don't have to flip it over when the 11 one ends, just start the egg.
Because 2 minutes of sand are in the bottom and 7 are in the top already.

Figured it out! You are right John E. Franklin! Thanks for the correction...

If two or more thoughts intersect, there has to be a point!

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## #90 2008-08-10 14:28:44

careless25
Real Member
Registered: 2008-07-24
Posts: 560

### Re: Brain Teasers

heres another method to boil it.

Both other methods are correct tho, gud job Zhero and John.

Last edited by careless25 (2008-08-10 14:29:06)

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## #91 2008-08-12 16:08:17

careless25
Real Member
Registered: 2008-07-24
Posts: 560

### Re: Brain Teasers

While 2 ppl are busy with 21 heres the next one for all the other users.
22)
The sign outside the Mod Club read thus-
"the following are permitted to the club:-
A. Males who keep long hair
B. Females above 25 years
B. Males above 25 years
D. Those below 25 years who do not wear short pants and are accompanied by their partners
E. Those below 25 years who come in short pants but are not accompanied by their partners
F. Those below 25 years who keep long hair and are not accompanied by their partners
G.Males above 25 years who do not keep long hair
H. those below 25 years who keep short hair, do not wear short pants and are not accompanied by partners."
What class of people are not permitted to the Club?

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## #92 2008-08-12 16:17:54

careless25
Real Member
Registered: 2008-07-24
Posts: 560

### Re: Brain Teasers

23)
Once in my life I happened to make an inquiry to thee young girls Jyoti, Renu and Suman, about their ages, this is what I was told:
Suman: The difference between Renu's age and mine is three years.
Jyoti: Renu is the youngest.
Renu: Either I am 24 years old or Jyoti 25or Suman 26.
Jyoti: All are above 24 years of age.
Suman: I am the eldest if and only if Renu is the youngest.
Renu: Suman is elder to me.
Jyoti: I am the eldest.
Renu: Suman is not 27 years old.
Suman: The sum of my age and Jyoti's is two more than twice Renu's age.
They also conveyed to me that one of them had been telling a lie throughout whereas others had spoken the truth and nothing but the truth.
Can you figure out how old is each?

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## #93 2008-08-12 22:02:53

mathsyperson
Moderator
Registered: 2005-06-22
Posts: 4,900

### Re: Brain Teasers

Why did the vector cross the road?
It wanted to be normal.

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## #94 2008-08-13 01:13:06

careless25
Real Member
Registered: 2008-07-24
Posts: 560

NO but close.:D

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## #95 2009-01-04 10:26:15

JaneFairfax
Member
Registered: 2007-02-23
Posts: 6,868

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## #96 2009-01-07 02:23:25

careless25
Real Member
Registered: 2008-07-24
Posts: 560

### Re: Brain Teasers

JFF congratulations and nice reasoning!

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## #97 2009-01-26 16:57:51

careless25
Real Member
Registered: 2008-07-24
Posts: 560

### Re: Brain Teasers

After a long time...
here r some popular puzzles:

24. This concerns a man who designed a square house with windows on all 4 sides, each window having a view to the south. No bay windows (which would take care of 3 sides) or anything of that sort. How is this possible?

25. A certain sportsman, experienced in shooting small game, was out on his first bear hunt. Suddenly he spotted a huge bear about a 100 yards due east. Seized with panic,the hunter ran - not directly away from the bear, but, in his confusion, due north. Having covered about a 100 yards, he regained his presence of mind, stopped, turned, and killed the bear - who had not moved from his original position - by shooting due south. Have you all the data clearly in mind? very well, then; what color was the bear?

26. We can agree, can we not, that the better of two clocks is the one that more often shows the correct time? Now suppose we are offered our choice of two clocks, one of which looses a minute a day. while the other does not run at all. Which one shall we accept? Common sense tells us to take the one that looses a minute a day, but if we were to stick to our agreement we shall have to take the one that doesn't run at all. Why?

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## #98 2009-01-27 06:07:51

JaneFairfax
Member
Registered: 2007-02-23
Posts: 6,868

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## #99 2009-01-27 06:12:46

careless25
Real Member
Registered: 2008-07-24
Posts: 560

### Re: Brain Teasers

umm minor mistake JFF!:P
edit: i meant a major mistake.

Last edited by careless25 (2009-01-27 06:18:17)

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## #100 2009-01-27 06:16:13

JaneFairfax
Member
Registered: 2007-02-23
Posts: 6,868

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