The Great Riddle Plan

What jet black bird lives in an empty nest? What electronic device doesn't lie? What don't you need when you're there but do when you leave? Why do oden and cabbage rolls have such a good relationship? All of these riddles and more stand in the way of Zorori and his escape. The princess has thrown Zorori and "Shishiko" into a test of riddles. They must make their way back to the princess if they have any hope of returning to Earth. But will Zorori have to marry Shishiko so the princess won't marry him? Based on book 13.