Yes, it has happened on rare occasions. I suppose if you're hypomanic, the "boost" aides in such things, but I think it can happen to most people.

I was never bad at math, design (more the engineering aspect vs. artistic), or general problem solving, but on occasions I was suddenly able to solve and design things that amazed myself and others. Even the "idea person" in me could reach new heights on occasion, and then fall downwards.