IDIOMS AND SAYINGS 🇺🇸🇲🇽🇫🇷

🇺🇸Your guess is as good as mine
(I

do not know the answer to a question  at all).
🇲🇽Vaya uno a saber.
🇫🇷Va savoir.

🇺🇸It happens once in a blue moon.
(It happens very rarely)
🇲🇽Sucede allá cada venida de obispo.
🇫🇷Ça arrive tous les 36 du mois.

🇺🇸You hit the nail on the head!
(You're absolutely right!)
🇲🇽Diste en el clavo!
🇫🇷T'as tapé dans le mille!