Because no one got the hardest riddle in the world, here is an easier one:
Jack and Jill are in the middle of a room, dead. There is glass and water everywhere. there are no eindows in the room and only one door. How did they die?
*pulls out Lockish Longsword and stabs thread through the heart* By the way, the answer is... Jack and Jill were taking turns drinking water in a room. Jack and Jill both had a heart attack at the same time and they dropped the glass in the process.