Word Problems

As a challenge, Mr Sherwin's numeracy group have been inventing their own word problems. Some of them were very sad. Can you solve them?

I had 12 snakes and 2 rabbits. A quarter of the snakes were jumped on and killed by the rabbits. How many snakes do I have left?
By Mikenagh

There was 1000 zebras. Half of them went away eating grass. How many were left?
By Micah

There were 12 cats. Half were run over by a lorry. How many were left?
By Rochelle

There were 24 books on a table. A quarter of them were taken to the library. How many books went to the library?
By Rebecca

There were 60 fish. Half of them were eaten by a shark. How many fish are left?
By Sydney

There were 100 divers that dived into the ocean. Half of them got eaten by sharks. How many divers were left?