Misc: In medieval Spain which city was noted for its quality steel?

Questions

In country does nodding the head means "no" & shaking the head means "yes"?

In darts, what does a dart in the inner bull score?

In darts, what does a dart in the outer bull score?

In darts, what is the highest score possible with 3 darts?

In developing nations, ______ percent of diseases are water related?