Answer:
1. all people on the boat are married when you see a boat filled with people. When you look again, you don't see anyone unmarried.
2. 11 because "the alphabet" has 11 letters.
(I played this kind of riddle before, so I know some answers.)
The answer is description because you are describing the events that happened
Example:
Q: Mango and Strawberry and my favorite cake flavors
A: Mango is my favorite cake flavor, So is Strawberry my favorite cake flavor
Answer
Rhetorical question
This device engages the readers mind to actively integrate what they are reading.
Answer:
Maybe you can do a story where these people lived in a haunted house and they lived in constant fear and isolation, and then they escaped AND THEY NEVER RETURNED AGAIN. I obviously can't right the whole story in this answer, but there's a very basic idea.
Explanation: