Last Problem:
You’re at a restaurant and the table is getting cleared – not much is left. You have a glass of water with one ice cube. How can you prevent the ice cube from touching any part of the glass, without using any props to keep it away from the glass?
Answer:
Place a string (or hair or thread) on top of ice, then sprinkle salt to melt the ice a bit, so it refreezes onto the string, then lift out.
Or, try this: Fill it up to the top with water – the ice will float to the highest level – a full glass of water will have a rounded top, higher than the glass, so the ice will move toward the middle.
Today’s Problem:
A poor but honest knight wishes to marry a beautiful princess, who is also in love with him. The king isn’t as thrilled about it, but offers the knight a choice. He will draw one of two slips of paper from a golden box – one slip says “Marriage” and the other “Death.” The princess knows that both slips actually read “Death” and whispers this to the knight. But the knight is allowed to marry the princess. How?