How do you do? is to repeat the question: How do you do? (While it's perfectly OK to answer other similar questions How are you? / How are you doing? Fine, thanks / etc ) That said, then I talk to English speakers with Skype or in chats, I tried to ask the question, but the answer was never "how do you do?". It was rather "fine. you?" or something.
Do you really answer "How do you do?" with "How do you do?"
If you want to ask whether somebody knows something then you could say: Do you know that girl's name? or Do you know what time it is? However if you are informing the person of something in the same breath it makes sense to say: Did you know her name is Helen? This is doing two things. It is informing the person that the girl's name is Helen, and asking whether they knew already. They know now ...
How do you like it? is not always comparable to Do you like it? - you can answer the latter with "Yes/No", but you can't say "Yes/No" in response to the former.
Can I swim? How do I shower? Do I need to buy different clothes? How will it affect my intimate life? Once you adjust, you'll likely find that it's possible to do many of the same activities you enjoyed before your ileostomy. Bathing and swimming You can shower with or without your ileostomy pouching system. Water will not go into the stoma.
CPAP is an important treatment for obstructive sleep apnea, but it may be frustrating at first. Learn how to avoid uncomfortable masks and other common CPAP problems.