In Swiss French if you’re questioning someone’s foolish or crazy behavior, you ask if everything’s ok in their chalet 
.
In German, you rather ask if someone has all their cups in the closet (Hast du alle Tassen im Schrank?).
How do you say it in your language?
It’s getting a little less common, but in English people say “I don’t think he’s playing with a full deck” (as in, deck of cards).
Wow, I had never heard that! Thanks for sharing!
In Spanish we just ask directly: ¿Estás loco/a? 
In french french we say “Ça vas pas la tête ?!” which means literally “Isn’t it ok in the head ?!”
But there is so many expressions to talk about the fact that someone is crazy or fool:
-“il n’a pas la lumière allumée à tous les étages” means “he does not have light on every floor”
-“il lui manque une case” means “he is missing one box”
Check out this awesome blog (if you have not already) about French expressions !!
https://dedexpressions.com/
In Colombia we often say " se le corrió una teja" which translated would be something like “a tile slipped” meaning your roof it’s not ok because one tile fell 
. And another one that I use very often is “se le corrió el shampoo” which is basically the same but sounds funnier to me .
In German we have the funny expression: „Du hast nicht mehr alle Latten am Zaun!" (You don’t have all the slats on the fence anymore)
I didn’t know this Swiss French expression ! I love it ! Thank a lot stefanierambow !
