Question

aisi kon si cheez hai jo 2 baar naturally aati hai par teesri baar hamein khud lagsni padti hai

Answer 1

➡️Our teeth.

One time we have milk teeth.

➡️ Tgen they get replaced by permanent teeth.

➡️ If again they fall due to some reason we have to pit artificial teeth(put by ourselves). They are not natural the 3rd time.

Answer 2

I think the answer should be teeth