True or False.

1. Being both an integer and divisible by 2 without remainder is a necessary condition for being an even number.

2. Being an integer and divisible by 2 without remainder is a necessary condition for being an even number.

3. Driving seventy five miles per hour for fun is a sufficient condition for violating legal speed limit of sixty give miles per hour.

4. Driving seventy five miles per hour for fun is a necessary condition for violating legal speed limit of sixty give miles per hour.

5. Cutting off Joes head is a sufficient condition for killing him.

6. Cutting off Joes head is a necessary condition for killing him.

7. Curtin off joes head and then holding his head under water for 10 minutes is a sufficient condition for killing him.