No but a realy bad archer does it quite often.
Depends which way you want it to curve. I think most can make it curve down!
I'm an archer and my answer is no. I know this from experience. The arrow would have to be unbalanced when it was being made. It would either be built leaning to the left or right.
I have never heard of this and would not even think it to be possible.
If you have ever seen an arrow in flight in slow motion you would see that it is not a very smooth, flat, straight, flight to begin with.
Maybe if there are strong winds?
That doesn't sound like a good strategy for hitting the target. Shooting straight would surely be the ideal.