I'm the first if you see, 3-in-one if you know, and soon to be three if you observe. What am I?

  • 2
    $\begingroup$ Consider reopening the question. I think it's pretty clear now with punctuation (doesn't mean I know the answer though). $\endgroup$
    – 41686d6564
    Aug 10, 2019 at 15:29
  • 3
    $\begingroup$ Reopened, as the original close reason has been addressed. I suspect this question may be close-worthy on other grounds, in particular as it "may invite speculative answers, as the question is not fully defined. The validity of some answers may be based upon opinion. Good questions for this site have a limited number of objectively correct answers." I'll leave that to the community to decide, as answers emerge. $\endgroup$
    – Rubio
    Aug 10, 2019 at 19:26

4 Answers 4


Traffic lights.


If you just look, you see only one light. If you know what traffic lights are, you know there are three lights. And if you observe a set of traffic lights, you see the lights cycle through all three colours.


It could be the

Subject- object - verb trio of a sentence in English (or any language)


I'm (or any word of a normal sentence) is the subject - obviously. And then followed by verb (usually) and then an object. But, in this case they are reversed - a thing you know becomes a subject(3 in one) and once you observe, it is the action/ verb you are talking about.


It is a specially constructed English sentence, without violating rules of grammar.


It could be

Solar Eclipse


I'm the first if you see,
You see the Sun

3-in-one if you know,
As observed from the Earth, a solar eclipse occurs when the Moon passes in front of the Sun.

and soon to be three if you observe.
This occurs when the Sun, Moon and Earth are aligned.


It might be

The Play/Pause/Restart Button on youtube (or other devices/applications).

At first glance

When you choose a video, you have to click the play button to start.
enter image description here

After that, you observe

And it turns into the pause button.
enter image description here

And at the end,

It turns into the repeat button. But if you're a frequent user of Youtube, then you already know this.
enter image description here


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