Yes/no riddles on the topic Based on true events

Students are taking an exam at military academy. One of them chooses a ticket and goes to his seat to get prepared. After some minutes he goes to the professor, silently gives him the student's record-book and leaves the classroom. The student got the excellent.

The son of a rich man was kidnapped. The kidnapper wanted the rich man to bring and put the expensive diamond into the call-box located in a city park. Policemen surrounded this park, intending to catch the criminal. The father of the kidnapped child came to the call-box and did everything the kidnapper said to him, but the police could not prevent the cunning criminal from taking the diamond out of the call-box. They didn't grab the villian as well. What did he do?

A man is running, a crowd is running after him. The man is screaming to the crowd:"You will never see the gold!" and he starts shooting. People who observe all that are exulting.

He died because he mixed up the colors.

In the 1950s in America there was invented a chicken gun. What for?

A hospital director recently confirmed that many that many of people admitted to his hospital were not ill at all. They were perfectly healthy, yet were given hospital care and treatment.

The woman is speaking something and she is upset. Nobody can understand her but a man is filming her on camera. Why? And what is happening?

A salesman tries too hard to get a sale and as a result ends up dying.

Anthony couldn't have imagine his cold would be the cause of his death.

Michael applaused, and everyone in the room (except him) died. What happened?

Over 80 percent of Greenland is covered in ice. But why then it was called Greenland (a green land)?

One person decided to play golf with Nick Faldo, imposing one condition - he will choose the time and the place for a match. Nick agreed. As a result this person beat the champion.