“ The party receives a poorly written call for aid from a nearby mountain community. When they arrive, the town is overrun by trolls, but where are the villagers?”
“ Often times in when alchemy is thought of, we think medieval times with wizards and sorcerers. What if such things existed in modern days such as today? What if the focus of alchemy is common knowledge is can be used for favorite drinks? What if you have a soda machine that can create soda with special properties? The varieties is endless, though good taste is limited. What kind of concoctions can you create?”
“ On a location with numerous webs, and at least one big spider, there is a something inside a cocoon. It is humanoid in shape, still moving. If the heroes free it (not before they kill or drive away the spiders), they meet a ... zombie!
The poor zombie wandered the dungeon alone, and tried to kill a big living creature (= a spider). The spider used the usual treatment, even if this victim did not look tasty. The zombie can be easily killed as any other zombie. It got but several doses of spider-poison, so can be something worth if it is extracted. You can mention to a druid or ranger the fact the spider had no poison anymore.”