Silence?

Flip all 3 switches, then go upstairs

And what kind of switches are those? Can they somehow be flipped to the middle position, thus causing the light to flicker or shine with less intensity?

He hung himself from a block of ice which melted later?

You are CORRECT! Here's another one for today:

A blue house is made of blue bricks. A yellow house is made of yellow bricks. A red house is made of red bricks. An orange house is made of orange bricks. What would a green house be made of?

Garrek is most likely right. Meanwhile, let me give you a puzzle, which is a series of questions.

(Note: by actions I mean the basic actions you would do; for instance, "Pick up a stone" and "Throw a stone" would be two separate subsequent actions.)

1. How many actions does it take to put a giraffe into a fridge? List the actions.

2. How many actions does it take to put a hippopotamus into the same fridge? List the actions.

3. The giraffe and the hippo race to the river. Who is going to come first? Why?

You are correct! How about this:

A man takes the final test to leave the asylum. His doctor leads him to a common bath, and there is a spoon and a scoop in front of it. The task is simple: get all the water out of the bath. The man, of course, grabs a scoop and scoops all the water out of the bath. The doctor, however, makes a decision to leave the patient in the asylum for now. Why?

Note: I wrote it from my memory, so in case it proves to be too hard (which I don't believe it is), it might be quite hard to google it.

Right again! Here's a harder one:

A man is traveling to a town and comes to a fork in the road. If he goes left, he goes to a village of liars. If he goes right, he then goes to a village of truths - which is where he wants to go. However, he does not know which way is which.

He doesn't have time to go both routes, so he approaches a stranger who is standing in the middle of the fork. The stranger says he may only ask 3 questions and he will answer them.

The man asks, "Are you from the village of truths?" The stranger says, "Yes!" However, the man is still facing a dilemma: If the stranger was from the village of truths he can only tell the truth, but if he was from the village of liars, he would say he was from the village of truth.

So then he asks the stranger, "Are you telling the truth?" The stranger says, "Yes!" But sadly this leaves the man in the same position as before.

What question should the man ask the stranger?

Correct! New riddle:

Who spends the day at the window, goes to the table for meals and hides at night?

3, of course.

Don't underestimate Mr. Black. He still has a good chance of winning the truel. Keep thinking about it.