The first riddle is: There are no coconuts in this world, but you want to create something perversely similar to this? Can you find items that contain a cocoon in their name?
You have to bring him spider sack you get from killing the spider.

The second riddle is: Discord, but not of veil. Boss, but not from this world. Status, but not resistance. Bring it to me.
What do you have to bring him?