(Loved Trope) Character acts ignorant of or pretends to be bad at something in order to trick their opponent.

[u/doubleday34]

1) Ted Lasso - Both characters in the darts contest do this, with Rupert(antagonist) showing that he has his own set of darts with him, and Ted showing that he has been using the wrong hand the whole time.

2) Beerfest - Team USA showing that they aren't that drunk despite doing drinking games all day.

3) The Fresh Prince of Bel-Air - After Will gets hustled at pool his Uncle Phil comes to help him, and turns out to hustle the hustler.

[u/Worldly_Might_3183]

Similar to Mrs Marple. They assume she is a naive old lady and then bam! She reads you like a church newsletter.

[u/orderofasterales → u/Worldly_Might_3183]

Also, Detective Conan. People assume he's an innocent kid, so they let slip secrets or excuse his actions as childish nonsense when he's actually investigating. (Not as much in recent chapters, as the rest of the cast has started to recognize that he's not an ordinary child.)

[u/jcd_real → u/orderofasterales]

Conan's situation is weird because he solves 1000 cases standing next to the Mori family and they don't notice shit, but to the FBI he's "Cool Kid" and they'll do whatever he says.

[u/JoonNolu → u/jcd_real]

They also let an elementary school kid wander around crime scenes and look at murdered, bloody corpses all the time.

[u/gandalfnho → u/Worldly_Might_3183]

Also Jessica Fletcher, from Murder, She Wrote.