Brain Teasers
How Many Mice?
Trick
Trick brain teasers appear difficult at first, but they have a trick that makes them really easy.Trick
Mice are famous for their ability to multiply at breakneck speeds. The type of mouse we have here gives birth once a month, birthing 12 babies each time. Baby mice mature and can give birth two months after they are born.
You picked up one of these cute baby mice at the pet shop and brought it home the day after it was born. In 10 months from now, how many mice will you have?
You picked up one of these cute baby mice at the pet shop and brought it home the day after it was born. In 10 months from now, how many mice will you have?
Answer
One.The mouse cannot birth any babies by itself.
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Comments
Did you get that from a game?
great teaser
Unexpected
Rats! You got SourDough good, you did! ARRRRRGGGGGHHH!!!
$D
$D
tht was a awsum teaser i actually got this one
Rats!I knew there was going to be a trick!How did I miss that?
Quickq, the category shouldve told u there was a trick!!
Nice teaser,...quite simple however! fun nonetheless....
Nice teaser,...quite simple however! fun nonetheless....
great teaser, that got me!
wow i actually got that 1!!!
Fun! I think this was on Professor Layton and the Curious Village
Yeah,that's what I was talking about.He told me that he got it from a friend.
*she
Cute teaser!! ---BUT --- One mouse certainly CAN give birth alone - She just needs another mouse to aid in CONCEIVING the next generation!
Due to my dislike of math, I looked for, and quickly found, the answer (which didn't include math!).
Good one!
unklemyke, it said it was a BABY mouse. I doubt that it has matured enough to be able to conceive.
You got me! Nice one XD
Yes, unklemyke, because you bought the BABY mouse the day after it was born, it couldn't be pregnant. It's only one day old, and the riddle states that these mice can conceive after two months.
Good teaser!
Good teaser!
great teaser
could have been phrased a bit better, but still great
could have been phrased a bit better, but still great
That teaser tricked me ok
I got it..quite simple
This was cute
$ourDough belted out a major guffaw with this one
$D
$D
This was stolen from:
Professor Layton And the Curious Village on the Nintendo DS.
Professor Layton And the Curious Village on the Nintendo DS.
Thank you, PhoenixW, for revealing what you claim to be the true source of this teaser.
Curious myself, I was prompted to read a review for PLATCV. Now I MUST get that game for my DS!
Curious myself, I was prompted to read a review for PLATCV. Now I MUST get that game for my DS!
Wow!
That was fantastic
kinda easy though i think i might have heard something like this before.
That was fantastic
kinda easy though i think i might have heard something like this before.
Nice teaser. Really hard, but I got it. Yay!!!
Very catchy but still easy if you just think about it. You know it is a riddle,not a math test.
Way too easy. Even if there hadn't been a trick you would still need to know the number of specifically female mice in each litter.
That was fun, and I GOT IT!!!
Hey, PhoenixW, you should just accuse someone of ROBBERY just because you saw the teaser in a different medium. The person who "made it", or submitted it to Braingle and got it accepted, apparently said to someone else that they got it from a friend. That is entirely possible. The friend may have seen it on "thatever show you're naming", and told it to RiddleMeThis.
\
In fact, it says in the credits "Submitted by:", not "created by", and as far as I know, it's totally legit on Braingle to submit a teaser that was on a game, or in a movie, etc.
Even if it wasn't OK, and even if Riddlemethis claimed to have "created" the teaser, and it was in a book of teasers, the submitter may not have known that, and may have made it up independently of another source, or gotten it from a friend who said it was OK with them to submit it as a teaser.
But even if they definitely did COPY it and it was somehow KNOWN they did, you don't just post "This was stolen from..."!!! You would PM a moderator or Jake from Braingle, and tell them what you suspected. Sorry I've gone on a bit here, but, it's really offensive to me when people just hurl an accusation at someone, in public, which isn't even true or is in question!!!
Once again, GREAT TEASER, thanks for submitting it, I'm going to see if I can trick some of my family with this one.
Hey, PhoenixW, you should just accuse someone of ROBBERY just because you saw the teaser in a different medium. The person who "made it", or submitted it to Braingle and got it accepted, apparently said to someone else that they got it from a friend. That is entirely possible. The friend may have seen it on "thatever show you're naming", and told it to RiddleMeThis.
\
In fact, it says in the credits "Submitted by:", not "created by", and as far as I know, it's totally legit on Braingle to submit a teaser that was on a game, or in a movie, etc.
Even if it wasn't OK, and even if Riddlemethis claimed to have "created" the teaser, and it was in a book of teasers, the submitter may not have known that, and may have made it up independently of another source, or gotten it from a friend who said it was OK with them to submit it as a teaser.
But even if they definitely did COPY it and it was somehow KNOWN they did, you don't just post "This was stolen from..."!!! You would PM a moderator or Jake from Braingle, and tell them what you suspected. Sorry I've gone on a bit here, but, it's really offensive to me when people just hurl an accusation at someone, in public, which isn't even true or is in question!!!
Once again, GREAT TEASER, thanks for submitting it, I'm going to see if I can trick some of my family with this one.
That was a geat teaser and thank you for it, I needed a good laugh.
Yawn...
I got this one in a split second. Too obvious. I can just picture people with pencil & paper trying to figure it out. Very funny, tricky but easy.
This was a good teaser.
And no mouse can reproduce
by its self
duhhhh! =]
-Dont even try to conclude
conceiving with another mouse either.
And no mouse can reproduce
by its self
duhhhh! =]
-Dont even try to conclude
conceiving with another mouse either.
Good practice for state board exams. I am always telling the students to read the question carefully!
I figured this out right away. In reality though, a one day old mouse would die of starvation, since it would not be able to get milk from its mother. I am sure it needs to be nursed for at least a week or two, as I have seen baby mice with their mother, and they were over a day old! But I'm nitpicking!
Sweet. I got it
I got it!
Yes, it was easy; but I completely miss some of these that are easy. Good one. Thanks!
Yes, it was easy; but I completely miss some of these that are easy. Good one. Thanks!
Dang. That got me. I started to do the math, then said, "Ugg. I give up. I'm just gonna look at the answer." When I saw it was one, I went crazy.
I got a good laugh out of this one. Very clever no matter who thought of it first. Thanks for posting.
Yeah! I got this one!!!
I asked myself, What was the catgory? That usually does it for me in this category.
i knew it was one but i thought it was because boy mice can't give birth like in the paragragh it said boy mice mature and can GIVE BIRTH in two months so yepp.
RATS!!!!LOL!!!!!!!!!
I got this one easily. But I had to remind myself that it was a trick question. Very good.
I forgot it was in the trick catagory... ya, i said 60
Oct 08, 2008
lol i should smack you i wrote it all out
Concerning the comment about this being taken from Professor Layton:
The wording is exactly the same, so yes, I assume the author of this puzzle took it straight from that game. However, I'm sure this puzzle has existed for years in many forms.
The wording is exactly the same, so yes, I assume the author of this puzzle took it straight from that game. However, I'm sure this puzzle has existed for years in many forms.
easy
"In fact, it says in the credits "Submitted by:", not "created by", and as far as I know, it's totally legit on Braingle to submit a teaser that was on a game, or in a movie, etc."
I haven't looked through the TOS of this site yet, but I doubt that out and out plagarism is allowed.
"Even if it wasn't OK, and even if Riddlemethis claimed to have "created" the teaser, and it was in a book of teasers, the submitter may not have known that, and may have made it up independently of another source, or gotten it from a friend who said it was OK with them to submit it as a teaser."
That's not what the situation is. This is a verbatim word for word transcription from Professor Layton. These puzzles, with this specific sequence of words, belong to Level 5. If someone wrote a teaser LIKE this one (and there's been many forms of this particular teaser, so this isn't just a hypothetical) no one would have anything to say about it. This is a word for word copy, right down to the title.
Nevertheless, I loved it in Layton, and I still love it. Great teaser.
I haven't looked through the TOS of this site yet, but I doubt that out and out plagarism is allowed.
"Even if it wasn't OK, and even if Riddlemethis claimed to have "created" the teaser, and it was in a book of teasers, the submitter may not have known that, and may have made it up independently of another source, or gotten it from a friend who said it was OK with them to submit it as a teaser."
That's not what the situation is. This is a verbatim word for word transcription from Professor Layton. These puzzles, with this specific sequence of words, belong to Level 5. If someone wrote a teaser LIKE this one (and there's been many forms of this particular teaser, so this isn't just a hypothetical) no one would have anything to say about it. This is a word for word copy, right down to the title.
Nevertheless, I loved it in Layton, and I still love it. Great teaser.
I said one, cause it was male. As for the whole fiasco of where this came from, how do we know the people who put it into that game made it up? Riddles & teasers have been around WAAY longer than video games - this could've been around for centuries! Thanks for submitting it, either way!
Sweet.
I'm just glad i figured it out before I did the math.
This was used on The Curious Village, but is a really old teaser. It can be used anywhere, and it is fine here.
That was really easy, I got it immediatly
I love trick teasers they're always soooooo easy.... of course a mouse can't have babies by itself! its not bacteria ya know
i actually had the paper and pencil out and the problem figured out before i saw that only one mouse was bought. how embarassing
I thought the anser was you cant have mice (like giving birth)
Isn't it from 'Proffesor Layton and The Curious Village'???
It's easy-peasy for people who can be very sarcastic. Like me. Nice trick though (and I'm not being sarcastic)
that was VERY cute!!!
whats with all the nitpicking people???
whats with all the nitpicking people???
So you made me go through and do all the math only to realize I did not have to after I finish!!! Arrg! Cool though.
Great Teaser, and I got it.
i actually attempted to solve this mathematically, spending 15 minutes before i gave up and clicked answer.
stupid me.
stupid me.
I thought that it was 108, and it was trick because people might put 120. Great teaser!
very well
I just guessed 1 and I got it right.
The category gave it away..
The category gave it away..
Saw this before in Professor Layton, but still a great teaser
LOL Great teaser
The mouse could have died.
Quite easy, but heard of a tribble?
In my apartment the answer would be several grey and white mice. I'd buy a white one and it would mate with the grey ones we are trying to get rid of.
Fairly easy teaser but still a good one.
Tribbles hate Klingons and Klingons hate tribbles.
Tribbles hate Klingons and Klingons hate tribbles.
The answer now is zero. Since this teaser is three years old the mouse died of old age.
I've said it before, and I'll say it again (probably in two or three years! ) The teaser was a good one and made me smile! BUT the comments made me laugh out loud!!!
I got it right away, but it felt familiar, so I'm sure I've heard it years before (years before Prof. Leyton came out, which I've never played). It reminds me of the question about if a rooster's egg will roll to the left or right if it lays the egg on the peak of a roof.
It certainly pays to read a question carefully - I once had a maths teacher who got frustrated with no one following directions, so he handed out a 100 question test with extremely complicated problems, which clearly could not be finished within a 40-minute class. Eventually, several students began to put their heads on their desks, with smiles on their faces, really panicking those of us still trying to figure out even the initial calculus problems. Eventually, everyone figured it out when we went back and reread the directions at the top of the test (which he clearly told us to read as he handed the tests out), which told us to solve the last five problems and put our heads on our desks when finished (and naturally, the last five questions of the test involved embarassingly simple maths like 5-4 and 2+3).
I've been very good at trick questions since that day!
It certainly pays to read a question carefully - I once had a maths teacher who got frustrated with no one following directions, so he handed out a 100 question test with extremely complicated problems, which clearly could not be finished within a 40-minute class. Eventually, several students began to put their heads on their desks, with smiles on their faces, really panicking those of us still trying to figure out even the initial calculus problems. Eventually, everyone figured it out when we went back and reread the directions at the top of the test (which he clearly told us to read as he handed the tests out), which told us to solve the last five problems and put our heads on our desks when finished (and naturally, the last five questions of the test involved embarassingly simple maths like 5-4 and 2+3).
I've been very good at trick questions since that day!
Although I worked this one out as being only one (or possibly none as the baby mouse was taken so early from its mother), I thought I would crunch the numbers anyway:
Presuming the original mouse is female, a male is introduced only for one night once the mouse is two months old, and that each litter produces 6 of each gender then the final number after just 10 months would be a staggering 52,545!!! Phew.
Presuming the original mouse is female, a male is introduced only for one night once the mouse is two months old, and that each litter produces 6 of each gender then the final number after just 10 months would be a staggering 52,545!!! Phew.
Correction - Small mistake during the process , actual answer would be 82,273
Nice teaser..really got me guud..
Nice teaser..really got me guud..
well, DUH! You only bought ONE mouse!
if it did have babies you would have 120 mice
Very easy ;)
OH!! Hahaha!
G'mprnin',mates. At least for those of you in America. Nice day here, too.
And nice comments. Not many, though.
We need to find ways to encourage visits, comments, and votes.
Take a look at the count at the bottom of this page. It is probably in the 300's somewhere.
That's REALLY low to sustain a site of this calibre. We need to do some work to save Braingle.
And ... we will have our first FULL month of data to report - about mid-August - but I'll be here daily (maybe ) to keep you posted.
Thanks for reading.
BB02
And nice comments. Not many, though.
We need to find ways to encourage visits, comments, and votes.
Take a look at the count at the bottom of this page. It is probably in the 300's somewhere.
That's REALLY low to sustain a site of this calibre. We need to do some work to save Braingle.
And ... we will have our first FULL month of data to report - about mid-August - but I'll be here daily (maybe ) to keep you posted.
Thanks for reading.
BB02
I thought DOEHEAD had the best answer in 2011. But I did have it right.
If I hadn't read it twice I would still be counting fingers and toes.
Love this one. Thanks for posting! Love the comments, too!
Got it! These types are always fun.
That was a good teaser and I'm glad to say I wasn't fooled!
This one was fun. I really don't care where it was from, since I never saw it before. I got it right away because I was looking for the trick! Thanks for posting a fun way to start my morning!
I saw this and immediately thought of a tribble! Except THEY can give birth alone... maybe the mice are a better idea for a pet.
Fun, easy and entertaining teaser. I got it very quickly.
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