Here's how it works:
9: The Norwegian lives in the first house
.
So we know, that of the row of five houses, the
Norwegian
must
live in house number
1
.
14: The Norwegian lives next to the blue house
.
So now we know that house number
2
must
be blue.
8: The man living in the house right in the centre drinks milk
Although we do not yet know the colour, or occupant of the middle house, we
do
know that the person that lives there drinks
milk
.
4: The green house is on the left of the white house (they are also next door to each other)
5: The green house owner drinks coffee
Since House
2
we already know is
blue
, and the
green
and
white
house are next to each other, they must be
3
and
4
OR
4
and
5
. However the owner of House
3
drinks
milk
. So
4
must be the
Green
House and
5
must be the
White
House.
1: The Briton lives in a red house.
The Britons house
has
to be House number
3
, as we know the occupant of House number
1
, and we
also
know the colour of the three other Houses. We now also know that the
Norwegians
House
must
be the
Yellow
House, as that's the only colour left.
7: The owner of the yellow house smokes Dunhill
.
Got to be the
Norwegian
.
11: The man who keeps horses lives next to the man who smokes Dunhill
.
So this
has
to be the occupant of the
Blue
House, as this is next door to the
Norwegian
.
3: The Dane drinks tea
12: The owner who smokes Blue Master drinks beer
15: The man who smokes Blend has a neighbor who drinks water.
Okay, here is where we get all the drinks sorted out. The
Dane
could be living in House
2
or
5
. The person who smokes
Blue Master
could also be
2
or
5
. But the
Dane
can't be
5
, otherwise House
2
would be the
Blue Master
smoker and
beer
drinker, which would only leave House
1
for the
water
drinking neighbour. This doesn't work, since this would now make House
2
the
Blend smoker
. So the
Dane
is in House
2
, the
Blue Master
and
beer
drinker is in House
5
, and the
water
drinker is the
Norwegian
in House
1
.
13: The German smokes Prince
.
We know that the
Norwegian
smokes
Dunhill
and the
Dane
smokes
Blend
. So this leaves us Houses
3, 4
and
5
. But we
also
know that House
3
is occupied by the
Briton
, and that House
5
smokes
Blue Master
. So the only place the
German
could go, would be House
4
.
2: The Swede keeps dogs as pets
.
We now know who lives in House
5
, as that was the only nationality we hadn't placed.
6: The person who smokes Pall Mall rears birds.
The only person who's smoking habits we
haven't
figured out yet is the
Britons
, and we now
also
know he rears (fnaaaaaaar)
birds
.
10: The man who smokes Blend lives next to the one who keeps cats
.
The
Dane
smokes
Blend
, and he lives next to the
Norwegian
, so the
Norwegian
must
be the cat lover.
Which leaves us with only one person without a pet: the German.
So it
is
the
German
who keeps
fish
.
Fin.