I was in Dutch class last night, and we were covering Dutch sentence structure and the placement of the verb. Like German (my second language), the verb is always in the second position in Dutch (it and German are among the so-called V2 languages). For example:
Ik besteel een kaffe nu.
Nu besteel ik een kaffe.
They both mean "I'm ordering a coffee now", but the second one places more stress on the "now" in the sentence. This order also applies to questions...
Wat wil je drinken?
...unless it's a yes/no question:
Wil je een biertje drinken?
So far, yes/no questions are the only exception; when I took a look at this last night, I got to thinking. It's almost like there's a "null" question word in the sentence, which would fulfill the V2 aspect of the language!
(null) wil je een biertje drinken?
Are there any languages that have an additional question word for this "null" question word behavior? This may be a silly idea, but when I thought it up, I thought it was kinda cool.