I had my own language troubles living in Japan. One evening after work, I was having drinks with the ever so sexy Sumiko, who we met back in Girl(friend)s. Japanese has a similar distinction between “many” and “much” as English with the words “ikutsu” and “ikura”. However, the division of things and ideas between the two is different. Two concepts that fall under “ikutsu” in Japanese might be in English be divided between “many” and “much”. As I was chatting up my lovely companion, I tried to ask her “How many” she was, shorthand for “How old are you?” I got my words muddled and instead asked her “How much?” Which means pretty much what it sounds like.
Fortunately she laughed.
Unfortunately she then said “More than you can afford.”