I think the “until when” construct can work fine in a question like this, although I think I’d be inclined to change the order of the words:
I have until when to finish this project?
Also, it’s worth noting that we will often put additional emphasis on the word when in such questions, particularly when expressing surprise. For example:
Ted: I’ll need this project done by Friday.
Ned: I have until when to finish this project?
In this dialogue, Ned isn’t really asking Ted for a deadline; he is expressing incredulity that the deadline is coming so soon. In other words, Ned knows the project needs to be done by Friday, but he is astonished that he has so little time to accomplish so much work.
Of course, there are many other ways people can ask about an upcoming deadline. I especially like the suggestions provided by Bob Jarvis and Ronnie Childs elsewhere in answers and comments under this question:
- When is the deadline for this project?
- How long do I have to finish this project?
"Once a day" and "every" can sometimes be interchangeable. It all depends on context. There are times when using both together might add some needed clarification, but other times when it is unnecessary.
For example, if your Doctor gave you 14 days' worth of medication and told you to take it "once a day", it ought to be obvious that he means once every day until the course of 14 days has run. There is no need to add "every". On the other hand, if someone said "I have to take this medication every day" that could mean they have to take it for the rest of their life.
Similarly, if someone said "I work every day", that might not mean literally every day of the week, year after year without a break. It might just mean every usual work day - such as Monday to Friday - and they just mean to distinguish themselves from a part-time worker who only works some of the usual 'full-time' working week.
In your example, "online security" could be someone's line of work. They may think about it every work day, but not every day without exception. Personally, I don't think the option has been written this way so as to exclusively mean 7 days a week as opposed to 5, but I think it may have been written that way to avoid all of the ambiguity I have just discussed. Interpret it how you want.
Just on a general note, I've seen your various posts picking apart these kinds of multiple-choice survey options. To be honest, you may be seriously over-thinking them. The options don't always make sense to us as native speakers anyway. For example, terms like "strongly agree" and "strongly disagree" are often used alongside "agree" and "disagree", which doesn't stand up to scrutiny. One either agrees wholly, or does not. Survey writers tend to settle on a scale for the answers and then apply that scale to a set of questions for consistency, but without any thought for grammar.
Best Answer
As others have stated in the comments, you would continue like this:
Note: "a couple" doesn't always mean exactly two, although it often does.
As mentioned by Mick in the comments, thrice is quite old fashioned and while most people in the UK would understand, it's not commonly used.
You might also reference the fact that 12 is also known as a dozen (and therefore 6 is half a dozen):
There are also some other ways to reference numbers of "things" which don't really apply or work in the "times" example (some of which are a little archaic and more likely to be seen in literature or poetry than in everyday conversational speech/writing):
In the UK, we also have some slang for certain amounts of money:
There are a load more which originated in cockney rhyming slang, but those above are the most common.
Anyway, I've gone quite a bit off-topic there, but hopefully answered your question and gave you a little additional insight as well.