Answer:
Man's most important invention.
What loses its head every morning only to get it back every night?
Your reflection can be seen here, as long as you’re not moving.
What leaps one time out of four?
What can you never get rid of when you lose it?
I am a rock group with four members. All dead one was assassinated.
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?