Absurd answer: well you see here the answer to the first question is the king of Rome’s lobster who was in a cave for 73 days before he was saved by a water moccasin
The answer to the second question is a tic-tac-toe board with two pics of grandmas
The third answer is a couple of frogs eating lima beans and sniffing Mentos
The fourth answer is the giant hand that comes down from Jack and the bean stock
The fifth answer is a bamboo tree that smells like a thumbtack
The sixth answer is an electric toothbrush with an eraser on the bottom
The seventh and final answer is an airplane that crashed into a block of note books
1: A. deer's
2: B. king's
3. A. books'
4. B. turtle's
For 1., we're looking for more than one deer. Since two deer left tracks, it is plural. Add the plural possessive form 's. (deer's) (You can't say "deers" even if there are more than one, the proper way is "deer". That's why the apostrophe is before the s.)
For 2., we're looking the crown of only one king, so it is singular. Add 's (king's).
For 3., we're talking about multiple books, so you add the plural possessive form s' (books').
For 4., there is one turtle, so it is singular. Add 's (turtle's).
I hope this helped! :-)