What does this Rebus Picture mean?

If an earthquake is 1 point higher on the Richter Scale than another earthquake which is actually 10 times stronger, how much stronger would an earthquake be if it was just half a point higher on the Richter scale?

Different lights make me strange by changing me into different sizes. What am I?

My first is in chocolate but not in ham. My second is in cake and also in jam. My third at tea time is easily found. Altogether, this is a friend who is often around. What is it?

A girl was sitting in her hotel room when she heard a knock on the door. She opened the door and found that a man was standing outside. The man said, "Oh! I am really sorry, I thought this was my room." He then walked through the corridor to the elevator. The girl did not know the man. She closed her door and called security asking them to apprehend the man. What made her suspicious of that man? He might have been genuinely mistaken.

Can you decipher the below rebus?

PBLUESAISNUERSES

A very interesting trivia question for all.

Why do men's shirts have their buttons on the right side and women's have buttons on the left-hand side?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?