I solve puzzles and always did as a kid. I solved the rubik's cube on the second day I had it when it first came out - before the internet. That's way quicker than Rubik himself.
I see things that others don't. I often do it in 'intuitive' leaps where i can see multiple steps ahead all at once, and I know it works even though I haven't had time to think it through. It takes a second to see it but might take 20-30 minutes to explain it. I don't know how, it just happens.
Formal IQ tests affirm it - they're just like more fun puzzles.
In my work I've become a global expert at something - mostly through problem-solving and creative thinking I saw possibilities that led to it being changed. But I'm not always really quick like some. I'm also not great at maths - never interested me, and only use it where it is relevant. My ability tends to be around things I'm interested in. It also doesn't mean anything - it doesn't make you better than anyone. It's just useful. When my car isn't working, I have full respect for my friends who listen for 10 seconds and know exactly what's needed.
Still doesn’t imply, let alone prove that intelligence is measurable by any standard than the one they themselves set.