I feel like my teacher is disrespectful towards me in the most subtle, Japanese way possible. What should I do?
She says: "Of course you do." - Respond with a small nod and: "Of course I do:" followed by the question. Also, when you feel humiliated when she waits - you can turn this around. When she waits, look at her in a polite, indulgent manner, with an understanding smile (think: you - the OP - are the adult here!). Obviously (so you can think to yourself), she is unable to answer you more quickly, as you have a difficult question, she needs to reflect first on it. 

(Completely independent from that, check - just for yourself - whether you really ask too many questions or whether there is something wrong with them; perhaps they are unnecessary or easily answerable or superfluous? But no reason to feel bad, just inspect your question asking style and check whether it may have something you might be able to improve). In my opinion, there is no need to discuss things with her, as the likelihood is that she will downplay or outright deny it.