WATCH: Benedict Cumberbatch Faces His Biggest Villain Yet on 'Sesame Street'

Benedict Cumberbatch has solved a lot of crimes in his day, playing the super-sleuth detective Sherlock Holmes. However, the actor was recently forced to go up against his biggest nemesis to date...MATH. (We've all been there.)

The 'Sherlock' star took time out of his busy schedule to stop by 'Sesame Street' and ended up going toe-to-toe (or rather, number-to-number) with the evil Murray-arty — Moriarty's Muppet alter ego — who challenges him to solve a tricky mystery: Does the table in front of them have more apples on it, or more oranges?

But given that Cumberbatch isn't actually Sherlock (though we're all totally allowed to be in denial about that), he eventually had to call in a real expert on the matter — The Count. (We hear numbers are kinda his thing.)

Yes, just when you think this man can't possibly get any more lovable, he goes and does something like this. (Anyone else starting to think that math is actually really cool? Just kidding, of course. That's downright impossible.) Check out the video below and get ready for an eyeful of adorable.