Allan, Bill, Carl, Don, and Ethan went to bar to
have some beer. Allan and Ethan each drunk three different brands of beer.
The rest of them had two different brands of beer from
among the following: Miller, Budwieser, Heineken, Guinness, and Tsingtao.
To solve this puzzle, create the table below with Y
representing YES, and X representing NO.
Allan was the only one who drank Miller.
Bill did not drink Guinness.
Carl did not drink Budwieser.
Don did not drink Heineken.
Ethan was the only one who drank Tsingtao.

Miller 
Guinness 
Budwieser 
Heineken 
Tsingtao 
Allan 
Y 



X 
Bill 
X 
X 


X 
Carl 
X 

X 

X 
Don 
X 


X 
X 
Ethan 
X 



Y 
Therefore, we knew the two brands of beer Bill,
Don, and Carl drank.

Miller 
Guinness 
Budwieser 
Heineken 
Tsingtao 
Allan 
Y 



X 
Bill 
X 
X 
Y 
Y 
X 
Carl 
X 
Y 
X 
Y 
X 
Don 
X 
Y 
Y 
X 
X 
Ethan 
X 



Y 
Two of them had Budwieser.

Miller 
Guinness 
Budwieser 
Heineken 
Tsingtao 
Allan 
Y 

X 

X 
Bill 
X 
X 
Y 
Y 
X 
Carl 
X 
Y 
X 
Y 
X 
Don 
X 
Y 
Y 
X 
X 
Ethan 
X 

X 

Y 
Since Allan and Ethan each drunk three different brands of beer,
we can complete the table above.

Miller 
Guinness 
Budwieser 
Heineken 
Tsingtao 
Allan 
Y 
Y 
X 
Y 
X 
Bill 
X 
X 
Y 
Y 
X 
Carl 
X 
Y 
X 
Y 
X 
Don 
X 
Y 
Y 
X 
X 
Ethan 
X 
Y 
X 
Y 
Y 
From the table above, we conclude that:
Allan had Miller, Guinness, and Heineken.
Bill had Budwieser and Heineken.
Carl had Guinness and Heineken.
Don had Guinness and Budwieser.
Ethan had Guinness, Heineken and Tsingtao.
