Five Ws

The Five Ws, Five Ws and one H, 5W1H, or the Six Ws are questions whose answers are considered basic in information-gathering or problem-solving. 

• Who did that?
• What happened?
• When did it take place?
• Where did it take place?
• Why did that happen?

Some authors add a sixth question, “how”, to the list, though "how" can also be covered by "what", "when", or "where"^:

• How did it happen?