Answer:
I am a portal to another world which you cannot enter. Only you can see me but I can't see you.
I encourage people to run home and steal
I am a king who's good at measuring stuff. What am I?
I am a key that is playful. What am I?
I can wake you up in the morning but I require no electricity or winding.
How can you add eight 6s together so that the total adds up to 750?