Here is a short riddle built around a phrase with more than one meaning: What can you turn on but never turn off?
One common intended answer is a person.
The trick is that “turn on” is not being used like a switch. In everyday language, someone can “turn on” another person by attracting, exciting, or strongly interesting them. That does not mean there is a literal off switch that can simply reverse the reaction.
The wording encourages you to think first about lamps, televisions, appliances, or other things controlled by switches. But all of those can normally be turned off again, so they do not fit the clue.
It is a wordplay riddle rather than a mechanical puzzle. What answer came to your mind first?
