dude, I had to restart this exercise because the link opened on this page, but hell, it was worth it!
Could this be a conversation between two farmers asking about the number of cows or sheep they have?
Hi, why is it 'twee hoofden is better dan een'. I would have thought it would be 'twee hoofden zijn better dan een'. If not, I have something wrong somewhere!
It can be "is" in English too.
- Two heads are better than one
- Having two heads is better than one
If the second phrase loses the first word, it could idiomatically keep using "is".
As this takes jullie, is this another way of asking how many people there are in Dutch, say in a room for example?
In English we can say "How many heads you got?" (or "is there?", or even "is they?") in london dialect to convey this, and this sentance looks cery similar in dutch to that.
No, not as a question. A teacher might say something like "hoofden tellen" (counting [the] heads), which is, obviously, counting how many people there are. :)
We can say anything, but those examples are very poor examples of proper grammar
If we translate the English back into Dutch we will get only the singular which will be wrong. Seems like Duo does not know the plural form of the English second person and does not care to learn it either.