Yes, it could. In spoken English it would usually be simple to decide if it's sincere. In written form it could suggest insincerity depending on the situation. If the recipient of the "Thanks a lot" has doubts about your sincerity it would be very difficult to gauge it by that line. If accompanied by something that clarifies the meaning or if there's no reason why you would possibly be insincere it would be perfectly fine to use. It's a perfectly fine way to say thank you for something and would in most cases probably be interpreted as such, but it can imply sarcasm in some situations.

I would say it depends a little on your work. If you have a desk job or something that is not physical then getting up, moving about a little, stretching and performing some simple physical exercises can really help wake you up. You might look a little silly while performing them in a work place, but it might be worth it. If your work is quite physical already though I'd say the most important things are what you do outside work. Keep a regular sleeping pattern and be sure to sleep well, make sure you eat healthy meals and at not too large intervals to keep your energy up throughout the day. When you sleep make sure that it's quality sleep, avoid TV and monitors for a period before you go to bed and avoid eating any large meals right before bed. These things also apply for the situation above although it requires more planning. Some people might recommend coffee, that however is a bad idea. The feeling of coffee waking you up that coffee drinkers get is actually a return to their normal state, because if they don't drink coffee they start "detoxing" and it makes them feel tired. http://voices.washingtonpost.com/checkup/2010/06/does_caffeine_really_wake_you.html My knowledge of grammar isn't that great so I'll leave that up to someone else. I can make a few comments though. In the first sentence I'd probably insert "What do you do when you're sleepy in the afternoon?" or "What do you do when you feel sleepy in the afternoon?". For the next line I would probably use notify instead of notice. You could replace "not sleepy" with "awake" in the second to last line.

I would say it depends on the context. I wouldn't use the phrase by itself unless I was checking some kind of schedule to see if there was room for the activity you were suggesting. Like if you asked someone if they had some free time to go out for lunch with you some time soon. Another example would be if you were setting up a business meeting or an appointment, although in my country Sunday would be an unlikely day to do business.

I'd take it as a bit of a philosophical statement, you can read a lot of things into it. My understanding is that we're now in such a technological world that we're entirely reliant on technology in many cases. You're expected to carry your cellphone with you at all times and be available 24/7. So many things required of you in society requires you to use technology that it's very difficult to "escape" it. I suppose there are places where this is entirely untrue, but I'd assume the person who've made the statement is referring to a place where the above would be valid. If you do a web search for the statement, for example using google.com you will probably find a lot of articles and blog posts discussing their thoughts on it.

Er disse setningene riktige? "Setningene" is plural so "denne" and "riktig" should use the plural form as well. Hvordan går det med deg? = How's everything with you? How are you? Everythng was probably a typo. The Norwegian line seems okay. Husker du meg? = Do you remember me? No need for "om". Forstår du meg? = Do you understand what I'm saying? Do you understand me? Seems correct. Håper at du har det bra! = Hope you're ok! Might just be a typo, but "de" should be "det".

Hvordan har du det? is the translation I would use for Norwegian, there are other small variations of the question with the same meaning like in other languages.

In essence, humans can rarely if ever be 100% objective when reasoning.