Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

In one of the popular batman series movie "Batman Forever", there was a riddle that goes like "Tear me off and then scratch my head and I was red then and now I am back. Who am I?

John was piloting a plane behind a car but was never able to overtake it. Why?

I got a bee but no honey.
got an eye but am still blind.
got a sea but no water.
got a tea but no coffee.
got a why but no answer.

What Am I?

Doctor Alex and a bus driver John are both in love with the same woman named Olivia. The bus driver need to go for a long trip of 10 days, Before he left he gave Olivia 10 apples.

While preparing the table for dinner, wife came up with an idea to tease his mathematician husband. She asked her husband to pick nine toothpicks and make ten without breaking any toothpick.

The husband was also smart and did it within seconds. How ?

Can you name some countries which do not have the alphabet 'A' in them?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

Can you place three balls such that the equation shown in the picture holds true?

What is the end of everything?