The question of the problem with questions & problems

In Mandarin, the word for 'question' is the same as the word for 'problem': 问题 (wèntí).  This is normally not an issue - you can tell from the context of the sentence as to which interpretation is being used.

 ?! 

This morning, however, when I sat down to a hot cappuccino with my Chinese teacher, she asked me, “有问题吗？”   (yǒu wèntí ma?)  I was confused for a moment, since I thought she might have been asking it in a challenge way - like "What's your problem??"   Then I realised she was simply asking if I had any questions at the start of our lesson.

As I say, most of the time the context makes it clear what your meaning is. But if not, you could always extend the sentence just a little.

For example, instead of "我有问题"  (I have a 'question', or I have a 'problem'??) - you could say "我有问题要问你"  (I have a question I have to ask you.)

Or you could just leave people wondering about you.