I'm strangely good at catching things intuitively (??).

Like, if my kid throws something at me, I can catch it without looking at it. Almost every time, it's fun

Back in uni I discovered I can titrate perfectly. Normally you have to do at least 5 or 6 titrations and average the ones that match closest, but I never needed more than 2; A rough titration to get a ballpark figure, then a second to get the exact volume. Any more after that only ever confirmed the first figure.
My professor didn't believe me the first time I came up to her and said my 2 measurements were identical, so told me to do it again in front of her. I produced the same measurement again, and she said she'd never seen anyone do that before, but I'd still have to do at least 3 measurements each time for my coursework.

Unfortunately I've never titrated anything since leaving uni.

I can detect whether apples are "sandy" (or whatever the actual term is for when they have that fugly apple meat that feels like eating sand) or not.

I can make a water droplet sound with my mouth. At first I had to flick my cheek to do it effectively, but nowadays I can do it sneakily without. Great head turner in waiting rooms 😅

I can solve a Rubik’s Cube in under 15 seconds. (I had an obsessive phase as a teenager). I don’t think I’ve ever used that skill in my adult life, but they are fun figet toys for when I’m stressed.

I'm really good at palming coins and doing variations of disappearing coin tricks. Suck at any other form of slight-of-hand but I can make a coin-sized object look like it vanished with remarkable ease and smoothness.

I can handwrite cyphered text as fast as I can write ordinarily. Never have practiced reading the cyphered text though so reading notes that I took in cypher is a pain in the ass...

I play the drums, but not in a band or anything. It's pretty useless, but I'm glad I got good enough I could just play along with random songs and have fun at home. I didn't stick with any other instrument I've tried to learn, so I'm pretty proud of myself to still be at it after twenty years.

I can clap with one hand. In fact, I can one-hand clap with both hands at the same time!

I can wiggle my little toes independently.

I know the lyrics of Bohemian Rhapsody.

I can make two sounds that I haven't been able to locate in the IPA chart. They're a voiced and voiceless pair. I can only describe then as the sounds of a goose or duck.

I can bend my fingers between the last phalanx bones

I'm not trained in dancing but have shown up in the background of music videos because of my skills. Nothing impressive, but still good enough to he on camera.