Hard situation puzzles

At the end of the XIX century one american enterpreneur invented a system to withstand competition. This system we all use nowadays.

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.

Paul goes diving. How could he know he would be burnt to a crisp?

A woman buys a new pair of red high heels. Hours later, she dies.

She thought that it was the best day of her life moments before she died.

On a beautiful road, there’s a bus stop that is fully operational. However, no public transport stops there. Why?

After a professor died, his will was followed carefully, but later it turned out that he wanted something completely different. Why?

A man lies dead next to a feather. How did he die?

A man lets go of a bowling ball. A short while later, he is rushed to the hospital.

Mike has been standing on his knee in the middle of the desert for over a day. He is all alone and has neither food nor water. But he doesn’t leave the place. What’s the matter?

Kirill is jailed for a murder he hasn’t committed. Bill can prove that it wasn’t Kirill. But he deliberately hides the evidence. Why?

Silence fell, and after a few moments she died.