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?

Name a key which is hardest to turn.

I cry without having a voice.
I fly without having wings.
I bite without having teeth.
I whisper without a mouth.

Who am I?

There are forty elephants and they have forty-fore heads. How can this be possible?

What has many teeth, but cannot bite?

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

Make a sentence consisting of three words that have the whole alphabet.

I can write cow in 13 letters.

Can You?

John is the son of Jacob.
So,
Jacob is the_____of John's father?

A woman shoots her husband.

Then she holds him under water for over 5 minutes.

Finally, she hangs him.

But 5 minutes later they both go out together and enjoy a wonderful dinner together.

How can this be?