DoS Doomsday vs Mr. Fantastic
Doomsday bursts into the Baxter Building (ala the Mad Thinker's superandroid in FF#71). Reed enters the room to investigate...let the fightin' begin.
Now: I'm not asking if Reed could physically beat Doomsday (for obvious reasons). But: how long could he survive DD's punishment? Basically, DD bludgeons and pummels; how's that going to work for him here?
Secondly: could Reed last long enough to trick Doomsday into the Negative Zone (the way he did the Mad Thinker's android)?