Aromantic and Queer 
 uses all pronouns but I prefer She/her, They/Them, Xe/Xer
 currently questioning 80% of life choices
 please be respectful here I want Wattpad to stay a safe place for all people. I will use math to find who asked:

So in the joke "who asked" is supposed to be imaginary therefore we have the equation: who asked=imaginary.

The square root of -1 is also imaginary so we can also say: who asked= the square root of -1

Now in math the square root of -1 is also known as "i" so we can also say: Who asked= i

With all that we can conclude that I asked. 
I did not come up with this