All three classes put the puzzle pieces together. All 18 pieces were put together as one. It took them about 4 minute, for them to put the pieces into their corresponded spot.
"There." Katsuo said as he placed the last piece to complete the puzzle. His face brightened. Everyone in the school saw the outcome of the puzzle. It was a question that would be answer by the three classes. It will be the Class B whom will answer the question first, Class F next and Class D was the last.
A woman shoots her husband, then holds him underwater for five minutes. Next, she hangs him. Right after, they enjoy a lovely dinner. Explain.