That last one looks pretty clear cut. Each option is the same +2 food. The hammer from the watermill is more than the +10% from Landed Elite as long as you have less than +10 surplus food.
Also, a hammer is better than a culture towards the next item in each of those queues, since the culture represents a smaller portion of the next item, since culture policy costs escalate more than hammer costs do.
Also, a hammer is better than a culture towards the next item in each of those queues, since the culture represents a smaller portion of the next item, since culture policy costs escalate more than hammer costs do.