#see: him lying about a physically impossible i.q score for bragging rights

[pianokantzart]

What do you think about Bowser's 9,800 IQ?

I theorize one of two things

The person under King Bowser who gave him the I.Q test purposefully fudged the numbers to make him happy

Bowser doesn't know how I.Q scores work and made up a large number off the top of his head

I'm leaning toward option 2, considering that even the most brilliant minds rarely score above 180. Depending on the canon I'd give Bowser an 130 I.Q max, and that's being generous.