Answer:
The last man on Earth received a phone call, who was the caller?
The more you have me the less you see. Shine a light on me and I shall flee.
I am an instrument that you can hear but cannot see or touch. What am I?
What happens when you throw a green stone into the Red Sea?
What has many keys but can't open a single lock?
I am your mother's brother's only brother in law. Who am I?