An old-fashioned toaster will toast 
two slices of bread at once, but it 
can only toast one side of each slice 
of bread at a time. You like each side 
toasted for exactly one minute. How 
can you toast three slices of bread in 
three minutes?
Call the three slices of bread A, B, and C.
1. During the first minute, toast one side 
   of A and one side of B.
2. During the second minute, toast the other 
   side of A and one side of C.
3. During the third minute, toast the other 
   side of B and the other side of C.
Edwin