14
$\begingroup$

This one needs a lot of lateral thinking

In the equation below replace all the question marks with one single word (same word at every question mark).

Then show that the equation is correct.

enter image description here

| improve this question | |
$\endgroup$
  • 5
    $\begingroup$ Frankly, NaN (not a number) busts this whole thing wiiiiide open $\endgroup$ – Avi Nov 4 '19 at 14:34
  • $\begingroup$ Is it an equation (condition) formulated in some programming language? $\endgroup$ – z100 Nov 4 '19 at 20:11
  • $\begingroup$ No @z100. Kind of straightforward $\endgroup$ – DrD Nov 4 '19 at 21:33
11
$\begingroup$

Use ?=ROT to get:

ROT(ROT5(68))[ROT5(105)]=ROT(ROT5(68))[P]/ROT(ROT5(68))[Q]

which becomes:

ROT13[ROT5(105)]=ROT13[P]/ROT13[Q]

Now the clever bit, 105=CV in Roman numerals, and P->C, Q->D in ROT13:

ROT13(CV)=C/D

PI=Circumference/Diameter

| improve this answer | |
$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.