"i turned mid-twenties"
i already knew that "i turned 20" is right.
it means that i became 20 years old. right?

so is this sentence right, too?
"i turned mid-twenties"
i want to say when i became 24, 25 or 26.

Question

"i turned mid-twenties"
i already knew that "i turned 20" is right.
it means that i became 20 years old. right?

so is this sentence right, too?
"i turned mid-twenties" 
i want to say when i became 24, 25 or 26.

Answer

It's not correct, because "I turned' is used only with a specific age. You can say instead "I reached my mid-twenties.".