Logic Riddles

Question: A man drops an egg onto the cement. The egg doesn't break after falling 3 feet.

How could this be?

Question: A teacher decides to give a pop quiz one day but all of her students refuse to take the quiz thinking that the teacher will call off the quiz. She can give only one of these students a detention for skipping the quiz. All of the students know each other's names and if a student knows he/she is getting a detention they take the quiz.

How can she threaten her students with the single detention so they all take the quiz?

Question: A baseball pitcher plays during 9 innings, gets 27 strike outs, and only throws 81 pitches. But they still lose 1-0 to the other team.

How is this possible?

Question: How many letters are in the answer to this riddle?

Question: A smart landscaper is given the task of placing 4 trees so that they are all the same distant away from each other.

How does he do this?