The only contests I ever won were an eating contest (6 large Pizzas) and one where I had to correctly identify 6 different brands of Cola in a blind test.
My other biggest strength is extreme long distance endurance. I’m not fast, but I can be “not slow” for 40 hours.

I know the frog mating calls for all species of frogs in my area and volunteer for the local DNR to survey frog populations in my county. It’s a good indicator of water quality.

I took a random amphibian research class as an elective, loved it, and still do it 20+ years later.

1. I can make exquisitely intricate paper snowflakes, and have them turn out exactly how I visualized them.
2. I can perfectly control the browning level and inside melted-ness level when I roast marshmallows. My favorite way to do them is: warm but unmelted center surrounded by ~¼" thick melted layer, evenly medium toasted outside, with just one top corner briefly ignited and immediately extinguished for just a hint of char flavor and a bien cuit aesthetic.

I can almost always figure out that boardgame you played that you can’t remember the name of. Came in handy when I was the manager of a game store.

I can sit down and calmly read an entire manual from front to back.

I can talk just like Hoggle in the Labyrinth, and I learned the trick on how to roll the balls around on my hand the way David Bowie does in the movie.

I’m a very large person (250lb/110kg, over 6’/1.8m) and I walk almost silently, unless I’m trying to be loud. I’ve learned to make some kind of noise when approaching people from behind, because otherwise it almost guarantees a jump scare

I can read text in any orientation, even if mirrored, as easily as if it was right side up / not mirrored. Not sure why, and almost completely useless, but was surprised to discover that supposedly not everyone can do this?

I can pick things up with my toes. Not completely useless, maybe, but not exactly the pinnacle of tricks!

I can do a spot-on impression of the standard deep, booming monster-truck rally advertising voice.

“This FRIDAY! (Friday… Friday…) Only at the Gigantodome! Beer Swiller Productions presents MONSTER TRUCK MAYHEM! You’ll pay for the entire seat but you’ll only need the EDGGGGGGGGE!”

Well… of course you can’t hear it, but if you could, seriously, it’s dead-on.

I can smell when it’s going to snow.

Tuvan throat singing. Nobody knows I can do it. I perfected it during a 3hr commute to work each day for a decade.

I can hold a pencil using my forehead.

I’m completely ambidextrous. It comes into “handy” when one hand gets tired doing a task, like writing for a long time, but no one has ever noticed and I don’t think anyone would be impressed.

I’m basically a drug dog but for Dr. Pepper.

When my friends and family get different dark colas in their food orders and can’t determine which is which they have me sniff it out.

Can’t quite do it for other colas but it’s a fun little hill I’ll die on for others’ benefit (I hate Dr. Pepper).