If eleven plus two equals one, what does nine plus five equal?

What is the word or phrase?

We know that the number 7 is the prime followed by a cube. Which next number is also a prime followed by a cube?

Can you write down eight eights so that they add up to one thousand?

Can you name four days which start with the letter 'T'?

Replace the question mark in the picture below.

What is more useful when it is broken?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

It was a dark stormy night and a couple were in a car driving madly to a city. The car broke down and the husband had to go get help from someone who spoke his language. He was afraid to leave his wife alone in the car so he locked the car before leaving. When he came back, the car was in the same state as he had left it but his wife was dead, there was blood on the floor and there was a stranger in the car. What happened?

There was once a college that offered a class on probability applied to the real world. The class was relatively easy, but there was a catch. There were no homework assignments or tests, but there was a final exam that would have only one question on it. When everyone received the test paper it was a blank sheet of paper with a solitary question on it: 'What is the risk?'.Most students were able to pass, but only one student received 100% for the class! Even stranger was that he only wrote down one word!
What did he write?