I did an online one in the early days of the Internet, and scored a 137. I have zero faith it has any accuracy. My buddy also did it and got a 145, I believe his is above mine but still, no faith that the numbers are correct.
IQ tests are deeply and inherently flawed, usually based on the fact that you can both quickly read, understand the intent of the question, and respond with whatever the writer of the test feels is correct in a timely fashion.
And if you don't realize how much of what I just wrote is subjective based on lived experience, and specific parameters about you that have nothing to do with how intelligent you are, then congratulations, you're probably above average.
I don't know that I want the current elderly generation to live longer. Can we hold off on this for.... Idk, say, 15 years until they all die off naturally?