What is the efficient markets hypothesis and what is the main investment/trading implication?

Is technical analysis worth it? What about fundamental analysis? (Hint: use efficient markets hypothesis to answer this question)

What are the three forms of the Efficient Markets Hypothesis? (A good answer would define the three forms in addition to just stating them)

Describe two ways of testing the weak form efficient markets hypothesis.

Describe two ways of testing the semi strong form efficient markets hypothesis.

What is a momentum trading strategy and how is it useful for testing the Efficient Markets Hypothesis?

What is an event study and how is it useful for testing the Efficient Markets Hypothesis?

Do you think markets are efficient? Why or why not?

Describe one or two (or more!) violations of the efficient markets hypothesis.

Describe the joint hypothesis problem in testing both CAPM and the Efficient Markets Hypothesis.

I need short answers to these