"Am obosit răspunzând la zece întrebări."

Translation: I got tired answering ten questions.

[Coriander18]

I think American English they may answer to questions, but us Brits just answer questions... am I right?

[coinaday]

This American at least also answers questions. We answer to people (if we report to them at work).

[Joemaza]

”I got tired answering to 10 questions” the ”to” is not needed. If it were a person, it would be OK.