no, i just believe that the intel in ?’s head is classified

There is a suspicion that primitive humans did have it. And it worked at least until the 20th century. Of course it isn’t exactly proven so take it as you will.

Shhhhhhh!

You realize that the key to running a certain sort of con is to get just enough wrong as to fool others into believe the times you were right were happenstance…

You know, you really should clean under those floorboards, it’s a mess down there….ummmm….I meant I know nothing about any floorboards, or creepy stalking, I have an alibi! And if I don’t, I can get one! 😉

Except that he doffs it. Briefly.

Yay for Tinfoil.

Question Mark the walking enigma… who is that man? So far we know he is a martial art expert, know things he shouldn’t and can’t be read by a telepath… also he is very very pale, and his piercing gaze is clearly visible even in the shadow of his hat…

Look like it’s time to unleash the… Wild guesses!
Question Mark must be a robot! Think about it! The USA lose the war, but in like, ten years of wars, Max had time to refine his skills, trying to create a more discreet robotic supersoldier, when germany invade the US he has no other choice but to send his prototype using a military, untested, time machine and hoping it will be perfect enough to correct all the early mistakes!

Oh no I have even better… Question mark is obviously a vampire! He knows how to shield his thoughts because he lived long enough to meet a natural born telepath! (it’s possible, after all the army experiment aimed a developing hidden potential, they used drugs to reinforce them but it’s still their own body doing the work). He probably travelled everywhere in the world. If you’re concerned about the “sunlight issue” remember than original vampire didn’t feared it (in Dracula, the original book the Count is clearly seen in sunlight, the whole “Sunlight is deadly for vampire” was created by the movie Dracula by Coppola). Also in some others works very old vampires can resist sunlight